InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
Which among the following group elements are smaller in sizeA. IA groupB. II A groupC. VII A groupD. VI A group |
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Answer» Correct Answer - C |
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| 602. |
Largest particle among the following isA. `Cl^(-)`B. `K^(+)`C. `Ca^(++)`D. `S^(2-)` |
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Answer» Correct Answer - D |
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| 603. |
Which elemenet has the smallest first-ionization energy?A. `Mg`B. `AI`C. `Si`D. `P` |
| Answer» Correct Answer - B | |
| 604. |
Second ionization potential value is very low forA. SodiumB. Magnesium C. FluorineD. Oxygen |
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Answer» Correct Answer - B |
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| 605. |
The increasing order of the ionic radii of the given isoelectronic species is :-A. `Cl^(-), Ca^(2+), K^(+), S^(2-)`B. `S^(2-), Cl^(-), Ca^(2+), K^(+)`C. `K^(+), S^(2-), Ca^(2+), Cl^(-)`D. `Ca^(2+), K^(+), Cl^(-), S^(2-)` |
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Answer» Correct Answer - D |
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| 606. |
Atomic nitrogen has a higher ionization energy than atomic oxygen. This is best explained by:A. by lower electron-electron repulsion in nitrogenB. the greater effective nuclear charge of nitrogenC. the fact that the electron ionized in N is from the 2s subshell, while that ionized from O is from the 2p subshellD. the fact that N has an odd number of electron while O has an even number. |
| Answer» Correct Answer - A | |
| 607. |
Which of the following is an example of a positive ion and negative ion that is isoelectronic with ArgonA. `K^(+)` and `Cl^(-)` or `Ca^(2+)` and `S^(2-)`B. `Na^(+)` and `F^(-)` or `Mg^(2+)` and `O^(2-)`C. `K^(+)` and `I^(-)` or `Mg^(2+)` and `S^(2-)`D. `K^(+)` and `I^(-)` or `Ca^(2+)` and `O^(2-)` |
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Answer» Correct Answer - A |
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| 608. |
The ionization energy will be higher when the electron is removed from .........if other factors being equal.A. s-orbitalB. p-orbitalC. d-orbitalD. f-orbital |
| Answer» Correct Answer - A | |
| 609. |
Which of the following isoelectronic ion has the lowest 1st ionization energy?A. `Na^(+)`B. `F^(-)`C. `Mg^(2+)`D. `O^(2-)` and `F^(-)` |
| Answer» Correct Answer - D | |
| 610. |
Which element has the lowest first ionization energy?A. BB. CC. AID. Si |
| Answer» Correct Answer - C | |
| 611. |
First, second and third I.P. values are `10eV,15eV` and `150eV`. Element can be:A. `Be`B. BC. FD. `Na` |
| Answer» Correct Answer - A | |
| 612. |
The third ionisation energy will be maximum for:A. nitrogenB. boronC. phosphorusD. aluminium |
| Answer» Correct Answer - A | |
| 613. |
Find the highest ratio of IP values of given pair of elements:A. `He : Ne`B. `Ne : Ar`C. `He : Xe`D. `Kr : Xe` |
| Answer» Correct Answer - C | |
| 614. |
Assertion :- He has highest I.E among all elements. Reason :- He has highest E.A among all elements.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.C. If Assertion is True, but the Reason is False.D. If both Assertion & Reason are false |
| Answer» Correct Answer - C | |
| 615. |
Assertion:- `Mg^(2+)` is smaller atomic size then `F^(-)` Resaon :- `Mg^(2+)` has less number of `e^(-)s` than `F^(-)`A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.C. If Assertion is True, but the Reason is False.D. If both Assertion & Reason are false |
| Answer» Correct Answer - C | |
| 616. |
In `C,N,O` and `F` the electronegativityA. increase from carbon to fluorineB. decrease from carbon to fluorineC. increase up to oxygen and is minimum at fluorineD. is minimum at nitrogen and then increase continuously |
| Answer» Correct Answer - A | |
| 617. |
The electronegativity values of the elements are useful in predicting:A. bond energy of a moleculeB. polarity of a moleculeC. nature of an oxideD. all of the above |
| Answer» Correct Answer - D | |
| 618. |
Which of the following is correctA. `IP_(2)` of Cu is more than the `IP_(2)` of ZnB. The order of non-metallic character is : `N lt P lt O lt S `C. `IE_(2)` of Cu is greater than `IE_(2)` of KD. The order of ionic mobility in aqueous solution `Na^(+) lt Mg^(2+) lt Al^(3+)` |
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Answer» Correct Answer - A |
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| 619. |
Electronic configuration of `M^(3+)` is `[Ar]3d^(10)4s^(2)`, it belongs toA. s-blockB. p-blockC. d-blockD. f-block |
| Answer» Correct Answer - B | |
| 620. |
Ionic radil is `//` are `:`A. directly proportional to effective nuclear chargeB. directly proportional to square of effective nuclear chargeC. inversely proportional to effective nuclear chargeD. inversely proportional to square of effective nuclear charge |
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Answer» Correct Answer - 4 `["Ionic Radius"prop(1)/(("Effective Nuclear charge")^(2))]` |
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| 621. |
Which of the following statements is incorrect ?A. Oxide of aluminium `(Al_(2) O_(3))` , and arsenic `(As_(2) O_(3))` are amphoteric.B. Oxide of chlorine `(Cl_(2) O_(7))` is less acidic than oxide of nitrogen `(N_(2)O_(5))` .C. Oxide of carbon `(CO_(2))` is more acidic than oxide of silica `(SiO_(2))` .D. The correct increasing order of basic character of various oxides is `H_(2)O lt CuO lt MgO lt CaO` |
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Answer» Correct Answer - B |
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| 622. |
Statement-1: `(I.E.)_(n)` of an atom is always greater than `(I.E)_(n-1) (n in I^(+))` Statement-2: ne/Z ratio decreases on successive elimination of electrons.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-2B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-2C. Statement-1 is True, Statement-2 is FalseD. Statement-1 is False, Statement-2 is True |
| Answer» Correct Answer - A | |
| 623. |
Statement-I : `(I.E.)_(n)` of an atom is always greater than `(I.E.)_(n-1)` (n is integer number) Statement-II : `ne//Z` ratio decreases on successive elimination of electrons.A. If both Statement-I & Statement-II are True & the Statement-II is a correct explanation of the Statement-I.B. If both Statement-I & Statement-II are True but Statement-II is not a correct explanation of the Statement-I.C. If Statement-I is True but the Statemet-II is FalseD. If Statement-I is False but the Statement-II is True |
| Answer» Correct Answer - A | |
| 624. |
Statement-I : The ionisation potential of Sn is greater than Pb. Statement-II : Usually ionisation energy decreases down the group.A. If both Statement-I & Statement-II are True & the Statement-II is a correct explanation of the Statement-I.B. If both Statement-I & Statement-II are True but Statement-II is not a correct explanation of the Statement-I.C. If Statement-I is True but the Statemet-II is FalseD. If Statement-I is False but the Statement-II is True |
| Answer» Correct Answer - D | |
| 625. |
The ionic size decreases in the orderA. `K^(+) gt S^(2-) gt Sc^(3+) gt V^(5+) gt Mn^(7+)`B. `S^(2-) gt K^(+) gt Sc^(3+) gt V^(5+) gt Mn^(7+)`C. `Mn^(7+) gt V^(5+) gt Sc^(3+) gt K^(+) gt S^(2-)`D. `Mn^(7+) gt V^(5+) gt Sc^(3+) gt S^(2-) gt K^(+)` |
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Answer» Correct Answer - B |
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| 626. |
Which set represents isoelectronic species ?A)`Na^(+), Mg^(2+),Al^(3+), Cl^(-)`B)`Na^(+), Ca^(2+), Sc^(3+), F^(-)`C)`K^(+), Cl^(-), Mg^(2+), Sc^(3+)`D)`K^(+), Cl^(-), Ca^(2+), Sc^(3+)`A. `Na^(+), Mg^(2+),Al^(3+), Cl^(-)`B. `Na^(+), Ca^(2+), Sc^(3+), F^(-)`C. `K^(+), Cl^(-), Mg^(2+), Sc^(3+)`D. `K^(+), Cl^(-), Ca^(2+), Sc^(3+)` |
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Answer» Correct Answer - D |
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| 627. |
With respect of chlorine, hydrogen will beA. ElectropositiveB. ElectronegativeC. NeutralD. High reactive |
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Answer» Correct Answer - A |
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| 628. |
With respect to oxygen maximum oxidation state is shown by:A. halogen familyB. oxygen familyC. nitrogen familyD. boron family |
| Answer» Correct Answer - A | |
| 629. |
Which of the following statements is incorrect?A. The tendency to attract bonded pair of electron in case of hybridorbitals follow the order: `sp gt sp^(2) gt sp^(3)`B. Alkali metals generally have negative value of electron gain enthalpyC. The average oxidation number of S in `Na_(2)S_(4)O_(6)` is greater than in the case of `Na_(2)S_(2)O_(3)`.D. The electronegativity values for 2p-series elements is less than that for 3p-series elements on account of small size and high inter electronic repulsions. |
| Answer» Correct Answer - D | |
| 630. |
The group state electronic configuration of some elements, `P,Q,R,S` and T (these symbols represent the some of the known elements given in the periodic table) are as follows. ltbr. (P) `:1s^(2)2s^(2)2p^(6)3s^(2)3p^(2)` (Q) `:1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(1)` (R) `:1s^(2)2s^(2)2p^(6)3s^(2)3p^(1)` (S) `:1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1)` (T) `:1s^(2)2s^(2)2p^(^)3s^(2)3p^(6)3s^(10)4s^(2)4p^(6)` Match the electronic configurations of the elements with the properties given below and select the correct sequence by choosing the correct codes given. (i) Element forms a cation which is isoelectronic with `P^(3-)`. (ii) Element which in its compounds can show a maximum oxidation state of `+6` and that is coloured too. (iii) Element has largest atomic radius and highest first ionisation energy in the respective period. (iv) Element which has intermediate value of electronegativity and its oxide forms salts with strong acids and bases.A. Q R T PB. Q S T RC. Q R S TD. P Q R S |
| Answer» Correct Answer - B | |
| 631. |
In which case bond length is shortened?A. When miltiplication occurs between atomsB. When electronegativities are differentC. In both casesD. In none of the cases |
| Answer» Correct Answer - C | |
| 632. |
Which of the following is incorrect?A. E.N. of `F gt CI`B. E.A. of `S gt O`C. E.A of `O gt Se`D. Atomic radius of `Li gt Be` |
| Answer» Correct Answer - C | |
| 633. |
Which of the following options is incorrecr?A. Ist ionisation potential `: Na lt Mg lt Si lt P`B. Electron affinity: `N lt C lt O lt F lt CI`C. Hydrated radius `: Ba^(2+)(aq) lt Sr^(2+)(aq) lt Mg^(2+)(aq)`D. Polarity order: `N-H lt Sb -H lt As-H lt P -H` |
| Answer» Correct Answer - D | |
| 634. |
The most predominantly ionic compounds will obtianed from the combination of elements belonging toA. I and VIIB. II and VIC. IV and VIIID. III and V |
| Answer» Correct Answer - A | |
| 635. |
Which of the following relation is correct for boron element? Here P = period number of boron N = number of valence electrons is boronA. `(P+1) gt N`B. `(P+1) lt N`C. `(P+1) = N`D. `P = N` |
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Answer» Correct Answer - C `B-overset(1s^(2)2s^(2)2p^(1))hArr` Period `P = 2` `P +1 = 3 rArr` same values `N = 2+1 = 3` |
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| 636. |
The number of valence electrons that can be present in the second element of any period isA. 1B. 2C. 5D. 7 |
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Answer» Correct Answer - B |
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| 637. |
At room temperature liquid metal and liquid non-metals areA. Hg & `I_(2)`B. Cs & `Cl_(2)`C. Hg & `Br_(2)`D. Cd & S |
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Answer» Correct Answer - C |
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| 638. |
The covalent radius of hydrogen is `0.37A^(0)`. The bond length in `H_(2)` molecule isA. `0.185A^(0)`B. `0.74A^(0)`C. `1.48A^(0)`D. `0.37A^(0)` |
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Answer» Correct Answer - B |
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| 639. |
Covalent radius of oxygen is `0.74 A^(@)` and its A .R. electronegativity is `3.5` . What is the effective nuclear charge experienced by oxygen ?A. `4.20`B. `5.30`C. `3.50`D. `2.92` |
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Answer» Correct Answer - A |
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| 640. |
The statement that is false regarding the long form the periodic table isA. It reflects the sequence of filling the electron in the order of sub-energy levels s,p,d and fB. It helps to predict the stale valency states of the elementsC. It reflects trends in physical and chemical properties of the elementsD. It helps to predict the relative ionicity of the bond between any two elements. |
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Answer» Correct Answer - B |
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| 641. |
Which of the following contains same number of elementsA. 1st period & O groupB. 6th period & III B groupC. 5th period & III B groupD. 3rd period & VIIA group |
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Answer» Correct Answer - B |
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| 642. |
The effective nuclear charge on the added electron in F-atom , in the formation of negative ion isA. `4.55`B. `5.2`C. `4.85`D. `5.85` |
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Answer» Correct Answer - C |
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| 643. |
Covalent bond length of chlorine molecule is `1.98A^(0)`. Covalent radius of chlorine isA. `1.98 overset(0)(A)`B. `1.7 overset(0)(A)`C. `2.05 overset(0)(A)`D. `0.99 overset(0)(A)` |
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Answer» Correct Answer - D |
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| 644. |
In which of the following pairs, the first atom or ion is not large than the second?A. `Fe^(2+),Fe^(3+)`B. `O,S`C. `N,O`D. `Cl^(-),Cl` |
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Answer» Correct Answer - B |
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| 645. |
ionisation potential decreases down the group in representative elements while transition elements of the 6th period have greater ionisation potential values compared to the elements of the 5th period. Justify. |
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Answer» (i) factors effecting ionisation potential (ii) comparison of the screening effects of s, p, d and f electrons |
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| 646. |
What is the correct order of `2^(nd)` ionisation energyA. `C lt O lt N lt F`B. `C lt N lt O lt I`C. `C lt F lt N lt O`D. `C lt N lt F lt O` |
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Answer» Correct Answer - 4 `C^(+)-1s^(2)2s^(2)2p^(1)," "N^(+)-1s^(2)2s^(2)2p^(2)," "O^(+)-1s^(2)2s^(2)sp^(3)," "F^(+)-1s^(2)2s^(2)2p^(4)` clearly `2^(nd) I.E.` has order `OgtFgtNgtC`. |
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| 647. |
The electron affinity of an atom is numerically equal to theA. ionization potential of its uni negative ionB. effective nuclear charge of its uni positive ionC. ionization potential of its di negative ionD. ionization potential of it uni positive ion |
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Answer» Correct Answer - A |
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| 648. |
`X_((g))+e rarr X_((g))^(-) +E`, Here 'E' isA. First electron affinityB. First ionisation energyC. Second electron affinityD. Second ionisation energy |
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Answer» Correct Answer - A |
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| 649. |
The ionisation potential of `X_((g))^(-)` is numerically equal toA. E.A. of `X_((g))`B. EA of `X_((g))^(+)`C. E.A. of `X_((g))^(2-)`D. E.A of `X_((g))^(2+)` |
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Answer» Correct Answer - A |
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| 650. |
Diagonal relationship is shown byA. `B-S`B. `Li-Mg`C. `Mg-Ca`D. `S-Se` |
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Answer» Correct Answer - B |
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