Chemical Bonding and Molecular Structure — practice questions
149 curated practice questions from Chemical Bonding and Molecular Structure (Chemistry JEE Main, NTA Exams) — 71 easy, 12 hard, 66 medium. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The correct order of boiling point is : array l (1) (15) (III) array
- The correct order in which the O-O bond length increases in the following is:
- When _ A and _ B are the wave functions of atomic orbitals, then ^ * is represented by: (Jee Main 2024)
- The total number of electrons that taken part in forming the bonds in N 2 is
- Which one of the following species do not exist under normal conditions?
- The molecule exhibiting maximum number of non-bonding electron pairs (l.p.) around the central atom is :
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT-1…
- H 2 O is dipolar, whereas BeF 2 is not. It is because:
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: N 2 and NO…
- Select the compound from the following that will show intramolecular hydrogen bonding. (Jee Main 2024)
- According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbitals. Number of atomic…
- The boiling points of methanol, water and dimethyl ether are respectively 65ºC, 100ºC and 34.5ºC. Which of the…
- Which of the following molecular species has unpaired electron (s)?
- According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbitals. Number of atomic…
- Based upon VSEPR theory, match the shape (geometry) of the molecules in List-I with the molecules in List-II and select…
- Consider the ions/molecule O_ 2 ^ + , O_ 2 , O_ 2 ^ - , O_ 2 ^ 2- For increasing bond order the correct option is: (JEE…
- Match List - I with List - II. List – I (Compound) List – II (Shape) (A) BrF 5 (I) Bent (B) [CrF 6 ] 3– (II) Square…
- The strength of bonds formed by 2s-2s, 2p-2p and 2p-2s overlap has the order :
- Which one of the following pairs is an example of polar molecular solids? (Jee Main 2023)
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Hydrogen…
- Which of the following is not true about H 2 O molecule ?
- When N 2 is formed from N _ 2 ^ + bond-order .......... and when O 2 is formed from O _ 2 ^ + bond–order .......... :
- The correct order of the O–O bond length in O 2 , H 2 O 2 and O 3 is :
- Resonance in carbonate ion ( CO _ 3 ^ 2- ) is Which of the following is true? (Jee Main 2023)
- Given below are two statements: Statement I: A π bonding MO has lower electron density above and below the…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: NaCl is…
- The bond between carbon atom (1) and carbon atom (2) in compound N 1 C - 2 C H = CH _ 2 involves the hybridisation as:
- Match List-I with List-II. List-I (Molecule) List-II (Shape) A. NH 3 I. Square pyramid B. BrF 5 II. Tetrahedral C. PCl…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: SeCl 2…
- Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule? (JEE Main 2022)
- What is the number of unpaired electron(s) in the highest occupied molecular orbital of the following species: N_ 2 …
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: LiF…
- Select pair of compounds in which both have different hybridization but have same shape:
- Of the following sets which one does not contain isoelectronic species?
- The hybridisation of atomic orbitals of N in NO 2 + , NO 3 – and N _ 4 ^ + are respectively :
- According to MO theory the bond orders for O_ 2 ^ 2- , CO and NO ^ + respectively, are (Jee Main 2023)
- According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbitals. Number of atomic…
- Which of the following molecule is theoretically not possible?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: In MgO…
- The state of hybridization of the central atom is not the same as in the others :
- Element A has 3 electrons in the outermost orbit and element B has 6 electrons in the outermost orbit. The formula of…
- During the change of O 2 to O _ 2 ^ - , the incoming electron goes to the orbital:
- The BCl 3 is a planar molecule whereas NCl 3 is pyramidal because :
- CH 2 = C = CH 2 In this molecule (allene)
- Among the following, the pair in which the two species are not isostructural is:
- Arrange the following in increasing order of their covalent character. A. CaF 2 B. CaCl 2 C. CaBr 2 D. CaI 2 Choose the…
- Both BF 3 and NF 3 are covalent but BF 3 molecule is non-polar while NF 3 is polar because :
- During the complete combustion of methane CH 4 , what change in hybridisation does the carbon atom undergo ?
- Number of electron deficient molecules among the following PH 3 , B 2 H 6 , CCl 4 , NH 3 , LiH and BCl 3 is (JEE Main…
- Given below are two statements. Statement I: O 2 , Cu 2+ and Fe 3+ are weakly attracted by magnetic field and are…
- Which of the following statements regarding O _ 2 ^ - is correct?
- Given below are two statements: Statement-I: Since fluorine is more electronegative than nitrogen, the net dipole…
- In which one of the following pairs the central atoms exhibit sp 2 hybridization? (Jee Main 2024)
- Which of the following statements is incorrect for sigma and pi-bonds formed between two carbon atoms ?
- Number of molecules/ions from the following in which the central atom is involved in sp 3 hybridization is NO 3 – , BCl…
- Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution? (JEE Main…
- The pair from the following pairs having both compounds with net non-zero dipole moment is (Jee Main 2023)
- O - O bond length in H _ 2 O _ 2 is X than the O - O bond length in F _ 2 O _ 2 . The O - H bond length in H _ 2 O _ 2…
- Number of lone pair(s) of electrons on central atom and the shape of BrF 3 molecule respectively, are (JEE Main 2022)
- In the structure of SF 4 , the lone pair of electrons on S is in (JEE Main 2022)
- The correct order of bond orders of C 2 2– , N 2 2– and O 2 2– is, respectively (JEE Main 2022)
- The crystal of which of the following ionic compounds would you expect the minimum distance between centers of cation…
- Consider the following statements: (A) NF _ 3 molecule has a trigonal planar structure. (B) Bond length of N_ 2 is…
- Which of the following statements is true about bonding and excitation ?
- The correct order of increasing intermolecular hydrogen bond strength is (JEE Main 2022)
- Which of the following does not contain any co-ordinate bond ?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: B 2 H 6 …
- The number of pentagons in C 60 and trigons (triangles) in white phosphorus, respectively, are:
- For exhibiting tetravalency, carbon atoms have to be excited. Now, which of the following statements is true ?
- Order of Covalent bond; A. KF > KI; LiF > KF B. KF KF C. SnCl _ 4 > SnCl _ 2 ; CuCl > NaCl D. LiF > KF; CuCl E. KF NaCl…
- The charge size ratio of a cation determines its polarising power. Which one of the following sequence represents the…
- The compound MX 4 is tetrahedral. The number of ∠XMX angles in the compound is :
- Which of the following pairs of species have identical shapes?
- In which of the following process, the bond order increases and paramagnetic character change to diamagnetic one? (Jee…
- Match List-I with List-II. (JEE Main 2022) List-I List-II (A) _ M o = _ A - _ B (I) Dipole moment (B) =Q r (II) Bonding…
- Which of the following statements is true about hybridization ?
- The correct order of increasing C–O bond strength of CO, CO _ 3 ^ 2- , CO _ 2 is :
- Bonding in which of the following diatomic molecule(s) become(s) stronger, on the basis of MO Theory, by removal of an…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Ionic…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: All the…
- Consider the species CH 4 , NH 4 + and BH 4 – . Choose the correct option with respect to the species. (JEE Main 2022)
- Match List I with List II LIST–I(molecules/ions) LIST–II(No. of lone pairs of e – on central atom) (A) IF 7 I. Three…
- An ionic compound A + B – is most likely to be formed when:
- Match List-I with List-II. List-I (Molecule) List-II (Shape) (A) BrF 5 (I) T-shape (B) H 2 O (II) See saw (C) ClF 3…
- When iodine is dissolved in aqueous potassium iodide, the shape of the species formed is :
- Which of the following orders is correct for electronegativity ?
- Assuming the bond direction to the z-axis, which of the overlapping of atomic orbitals of two atom (A) and (B) will…
- o-nitrophenol can be easily steam distilled whereas p-nitrophenol cannot be. This is because of :
- Match List I with List II : List-I(molecule) List-II(hybridization; shape) A. XeO 3 I. sp 3 d; linear B. XeF 2 II. sp 3…
- Match List-I with List-II. List-I (Compound /species) List-II (Shape/geometry) A. SF 4 I. Tetrahedral B. BrF 3 II…
- According to molecular orbital theory, which of the following will not be a viable molecule?
- Arrange the bonds in order of increasing ionic character in the molecules. LiF, K 2 O, N 2 , SO 2 and ClF 3 . (Jee Main…
- ‘ X ’ melts at low temperature and is a bad conductor of electricity in both liquid and solid state. X is
- The number of species from the following that have pyramidal geometry around the central atom is _______. S _ 2 O _ 3 ^…
- The correct statement/s about Hydrogen bonding is/are: A. Hydrogen bonding exists when H is covalently bonded to the…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Which of the following molecules does not have a dipole moment ?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Bond…
- The formal charge of the O-atoms in the ion [ O = N = O :]^ + is:
- The number of sp 2 – s sigma bonds in benzene are :
- Match List-I with List-II. List-I List-II A. ICl I. T-shape B. ICl 3 II. pyramidal C. ClF 5 III. Pentagonal bipyramidal…
- The incorrect statement regarding ethyne is (Jee Main 2024)
- The ground state electronic configuration of valence shell electrons in nitrogen molecule (N 2 ) is written ( 2s) 2 (…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Which of the following are isoelectronic and isostructural ? NO _ 3 ^ - , CO _ 3 ^ 2- , ClO _ 3 ^ - , SO _ 3
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A…
- The boiling points at atmospheric pressure of HF, H 2 S, NH 3 can be arranged in the following order :
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion…
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A: Zero…
- Decreasing order of the hydrogen bonding in following forms of water is correctly represented by A. Liquid water B. Ice…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Ionic…
- Arrange the following in the decreasing order of their covalent character: (A) LiCl (B) NaCl (C) KCl (D) CsCl Choose…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: LiCl is…
- In BrF 3 molecule, the lone pairs occupy equatorial positions to minimise:
- Which pair of elements can form multiple bond with itself and oxygen ?
- The correct increasing order for bond angles among and is: (Jee Main 2024)
- In which of the following pairs, both the species have the same hybridisation ? (I) SF 4 , XeF 4 (II) I _ 3 ^ - , XeF _…
- According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbitals. Number of atomic…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Molecular…
- The hybridization of the central atom in ICl _ 2 ^ + is :
- Correct statement regarding molecules SF 4 , CF 4 and XeF 4 are :
- BrF 3 molecule, the lone pairs occupy equitorial position to minimize.
- The correct statement with regard to H 2 + and H 2 - is:
- In which of the following species the bonds are non-directional ?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: The atoms…
- The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic…
- Which of the following statements is incorrect for PCl 5 ?
- Statement I: Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: The atoms…
- In 2sp 2 orbital, character of 2p z orbital will be
- Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding ?
- Bond order of O 2 , O 2 + , O 2 – and O 2 2– is in order :
- The structure and hybridisation of Si(CH 3 ) 4 is :
- The geometrical arrangement of orbitals and shape of I 3 – are respectively :
- The bond order and magnetic property of acetylide ion are same as that of (Jee Main 2023)
- Match List I with List II List I List II A. XeF 4 I. See – saw B. SF 4 II. Square planar C. NH 4 + III. Bent T – shaped…
- The number of antibonding electron pairs in O 2 2 - molecular ion on the basis of molecular orbital theory is (atomic…
- H 2 O is dipolar, whereas BeF 2 is not. It is because :
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The hybridisation of atomic orbitals of central atom “Xe” in XeO 4 , XeO 2 F 2 and XeOF 4 respectively.
- Match List-I with List-II : List I List II A. H 3 O + I. Tetrahedral B. Acetylide anion II. Linear C. NH _ 4 ^ + III…
- Which one of the following molecules has maximum dipole moment? (Jee Main 2024)
- Number of lone pairs of electrons in the central atom of SCl 2 , O 3 , ClF 3 and SF 6 , respectively, are: (JEE Main…
- Choose the polar molecule from the following: (Jee Main 2024)
- Match List-I with List-II. List-I (Hybridization) List-II (Orientation in Space) A. sp 3 I. Trigonal bipyramidal B. dsp…
- Match List-I with List-II. List-I (Molecule /species) List-II (Property/shape) A. SO _ 2 Cl _ 2 I. Paramagnetic B. NO…
- Which one of the following is the correct set with respect to molecule, hybridization and shape ?
- Which of the following molecules does not have co-ordinate bonds ?
- The bond between two identical non-metal atoms has a pair of electrons: