Classification of Elements and Periodicity in Properties — practice questions
56 curated practice questions from Classification of Elements and Periodicity in Properties (Chemistry NEET, NTA Exams) — 27 easy, 16 medium, 13 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is:
- The correct order of the atomic radii of C, Cs, Al and S is:
- Given below are two statements: Statement I : The elements silicon, germanium and arsenic are called metalloids…
- What is the general outer electronic configuration of the coinage metals?
- The IE 1 , IE 2 , IE 3 , IE 4 , and IE 5 of an element are 7.1, 14.3, 34.5, 46.8 and 162.2 eV respectively. The element…
- Given below are two statements: Statement I : According to Mendeleev periodic law, the properties of the elements are a…
- In the process Cl ( ~g )+ e ^ - Cl ^ - ( g ) , ∆H is:
- The electronic configuration of the element with atomic number 109 is:
- The correct sequence given below containing neutral, acidic, basic and amphoteric oxide each, respectively is
- Each period in the periodic table starts with a sub-shell of a new shell and ends with:
- Which of the following elements will form most stable bivalent anion?
- The statement that is not correct for the periodic classification of elements is:
- The five successive ionisation energies of an element 'X' are 800, 1427, 2658, 25024 and 32824 kJ mole -1 respectively…
- IP 1 and IP 2 of Mg are 178 and 384 kcal. The enthalpy required for the reaction Mg → Mg 2 + + 2e - :
- The decreasing order of the ionization potential of the following elements is:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Among Al 2 O 3 , SiO 2 , P 2 O 3 and SO 2 the correct order of acid strength is:
- Which of the following decreases in going down the halogen group?
- The correct option with respect to the pauling electronegativity values of the elements is:
- Following statement regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are…
- Identify the incorrect match. Name IUPAC Official Name (a) Unnilunium (i) Mendelevium (b) Unniltrium (ii) Lawrencium…
- When the first electron gain enthalpy ( eg H) of oxygen is -141 kJ/mol, its second electron gain enthalpy is:
- Certain regular intervals after which the similar outer electronic configuration of the elements occur are called:
- According to the periodic law of elements, the variation in properties of elements is related to their:
- The element expected to form largest ion to achieve the nearest noble gas configuration is:
- Which of the following sets of elements follows Newland's octave rule?
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Out of Na + , Mg 2 + , O 2 - and N 3 - , the pair of species showing minimum and maximum I P would be:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion…
- In general, the properties that decrease and increase down a group in the periodic table, respectively, are:
- The size of the iso-electronic species Cl - , Ar and Ca 2+ is affected by
- In which of the following arrangements, the order is not according to the property indicated against it?
- For the second period elements the correct increasing order of first ionisation enthalpy is:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Arrange the following oxides in decreasing acidic order: array lccc SiO _ 2 & CO _ 2 & SO _ 3 & ~N _ 2 O _ 5 (I) & (II)…
- Given below are two statements: Statement I : Metals will be found on the right side of the periodic table. Statement…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The Ionic radii of N 3 - ,O 2 - and F - are respectively given:
- The electronic configuration of an element is 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 1 . What is the atomic number of…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The radius of potassium atom is 0.203 nm. The radius of the potassium ion in nanometer will be:
- The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups. Its…
- The correct order of ionic radii of Y 3 + , La 3 + , Eu 3 + and Lu 3 + is:
- In the formation of a chloride ion from an isolated gaseous chlorine atom, 3.8 eV energy is released, which would be…
- O ( ~g )+2 e ^ - O ^ 2- ( g ) ∆H = 744.7 kJ mol -1 . The positive value of ∆H is due to:
- Minimum first ionisation energy is shown by which electronic configuration?
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The ionisation energy of B and Al as compared to Be and Mg are:
- Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of…
- The element having the highest I.P. in the two series C, N, O and Si, P, S is:
- Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides?
- The energy needed to remove one electron from unipositive ion is abbreviated as:
- With which of the following electronic configuration an atom has the lowest ionisation energy?