Chemical Bonding and Molecular Structure — practice questions
89 curated practice questions from Chemical Bonding and Molecular Structure (Chemistry Class 11, CBSE) — 89 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The conditions for the combination of atomic orbitals to form molecular orbitals are stated below. Mark the incorrect…
- On hybridisation of one s and three p -orbitals, we get
- What is the correct dipole moment of NH 3 and NF 3 respectively?
- Hybridisation state of Xe in XeF 2 , XeF 4 and XeF 6 respectively are
- The most stable shape of ClF 3 is shown by
- Which of the following molecules does not show any resonating structures?
- Which of the following is the most stable state when two atoms come closer to each other to form a molecule?
- In formation of ethene, the bond formation between s and p -orbitals takes place in the following manner.
- Which of the following shapes of SF 4 is more stable and why?
- In a bonded molecule, the order of repulsion between the bonded and non-bonded electrons is
- Which of the following orbitals will not form sigma bond after overlapping?
- Which of the following shows dsp 2 hybridisation and a square planar geometry?
- What is the formal charge on carbon atom in the following two structures.
- Which of the following species is isoelectronic with CO?
- Order of size of sp , sp 2 and sp 3 orbitals is
- In which of the following molecules octet rule is not followed?
- How many number of electrons are involved in the formation of a nitrogen molecule?
- Which of the following molecules shows intramolecular hydrogen bonding?
- Predict the formula of a compound formed by aluminium and sulphur.
- Which of the following representation of wave functions of molecular orbitals and atomic orbitals are not correct?
- CF 4 , SF 4 and XeF 4 contain the following electronic structure on their central atoms. Which one is correct option?
- Which molecule is depicted by the given ball and stick models?
- What will be the bond order of the species with electronic configuration 1 s 2 2 s 2 2 p 5 ?
- Which of the following statements is true about hydrogen bonding?
- Which of the following molecules is paramagnetic in nature?
- Which of the following species has unpaired electrons?
- Bond order of N 2 + , N 2 – and N 2 will be
- Oxygen molecule is paramagnetic in nature. What is the paramagnetic content in terms of magnetic moment in O 2 – ?
- Acidity of BF 3 can be explained on the basis of which of the following concepts?
- What are the two radii shown as a and b in the figure known as?
- Which of the following formulae does not show the correct relationship?
- Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice…
- Match the molecules given in column I with their shapes given in column II and mark the appropriate choice. Column I…
- Which of the following does not show octahedral geometry?
- Which types of bonds are present between two carbon atoms in acetylene molecule?
- In water molecule, the two OH bonds are oriented at an angle of 104.5°. In BF 3 , the three BF bonds are oriented at an…
- What is the hybrid state of carbon in ethyne, graphite and diamond?
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- Which of the following statements is not true regarding molecular orbital theory?
- Which of the following statement is not correct from the molecular orbital theory?
- The correct order of decreasing bond lengths of CO, CO 2 and CO 3 2– is
- The increasing order of energies of various molecular orbitals of N 2 is given below. s 1 s < s *1 s < s 2 s < s *2 s <…
- Although F is more electronegative than H, the resultant dipole moment of NH 3 is much more than that of NF 3 . It can…
- Given below is the bond angle in various types of hybridisation. Mark the bond angle which is not correctly matched.
- Which of the following pairs will have same bond order?
- Predict the formulae of the binary compounds formed by combination of the following pairs of elements: (i) Magnesium…
- Given below is the table showing shapes of some molecules having lone pairs of electrons. Fill up the blanks left in…
- Arrange the following in increasing order of covalent character – NaCl, MgCl 2 , AlCl 3 .
- Two elements X and Y combine to form a compound XY . Under what conditions the bond formed between them will be ionic?
- Which type of overlapping is shown by p ( p x , p y and p z )-orbitals?
- The correct sequence of bond length in single bond, double bond and triple bond of C is
- What is the order of stability of N 2 and its ions?
- Which of the following facts regarding bond order is not valid?
- How many orbitals are singly occupied in O 2 molecule?
- Which of the following will not give a white ppt. when AgNO 3 is added to its solution?
- Though covalent in nature, methanol is soluble in water, why?
- Which is the correct order of bond energy of single, double and triple bonds between carbon atoms?
- The molecules like BrF 5 and XeOF 4 are square pyramidal in shape. What is the type of hybridisation shown in these…
- Which bonds are indicated by X and Y in the given diagram?
- Which of the following bond orders is indication of existence of a molecule?
- The given structures I, II and III of carbonate ion represent
- In a diatomic molecule the bond distance is 1 × 10 –8 cm. Its dipole moment is 1.2 D. What is the fractional electronic…
- Which of the following observations can be explained on the basis of hydrogen bonding? (i) H—F has higher boiling point…
- Which of the following molecules contains covalent and coordinate bonds?
- The canonical or resonating structures of a molecule required to describe the structure of a molecule follow which of…
- Few examples of the compounds formed by chemical bonding are given below. Mark the incorrect example.
- Fill in the blanks with appropriate choice. Bond order of N 2 + is P while that of N 2 is Q . Bond order of O 2 + is R…
- The ground state electronic configuration of S is 3 s 2 3 p 4 . How does it form the compound SF 6 ?
- What are the hybridization and shapes of the following molecules? (i) CH 3 F (ii) HC N
- What is common between the following molecules; SO 3 , CO 3 2– , NO 3 – ?
- The shape of water molecule which should be tetrahedral has a bent or distorted tetrahedral shape with a bond angle…
- Which of the following compounds shows maximum hydrogen bonding?
- Few pairs of molecules are given below. Which bond of the molecule of the pairs is more polar? (i) H 3 C – H, H 3 C –…
- According to molecular orbital theory, which of the following will not exist?
- 2 s and 2 p -atomic orbitals combine to give how many molecular orbitals?
- Which of the following molecules is formed by sp 2 hybrid orbitals?
- A pair of electrons present between two identical non-metals
- Which of the following is not a resonating structure for nitromethane molecule?
- In which of the following molecules the central atom does not retain any lone pair of electrons?
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- Which of the following shows the Lewis dot formula for CO 2 ?
- The electronic configuration of carbon is 1 s 2 2 s 2 2 p 2 . There are 12 electrons in C 2 . The correct electronic…
- Two elements P and Q combine to form a compound. If P has 2 and Q has 6 electrons in their outermost shell, what will…
- Which of the following statements is true about hybridisation?
- Which of the following statements is correct regarding the structure of PCl 5 ?
- Arrange the following in order of increasing dipole moment : H 2 O, H 2 S, BF 3 .
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) C 2 H 2 (i) sp 3 d 2…
- In which of the following species the bond is non-directional?
- How many and what types of bonds are present in NH 4 + ?