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The first and second ionization enthalpi...

The first and second ionization enthalpies and electron gain enthalpy of some elements are as given below:

The metal which can predominantly form a stable cova- lent halide of the type (MX) (X : Halogen)

A

(F)

B

(B)

C

(D)

D

(A)

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The correct Answer is:
D
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The first (Delta_(i)H_(1)) and second (Delta_(i)H_(2)) ionisation enthalpies ("in" kJ mol^(-1)) and the (Delta_(eg)H^(ө)) electron gain enthalpy ("in" kJ mol^(-1)) of a few elements are given below: {:("Elements",(Delta_(i)H_(1)),(Delta_(i)H_(2)),Delta_(eg)H^(ө)),(I,520,7300,-60),(II,419,3051,-48),(III,1681,3374,-328),(IV,1008,1846,-295),(V,2372,5251,+48),(VI,738,1451,-40):} Which of the above elements is likely to be a. the least reactive element. b. the most reactive metal. c. the most reactive non-metal. d. the least reactive non-metal. e. the metal which can form a stable binary halide of the formula MX_2 (X=halogen). f. the metal which can form a predominantly stable covalent halide of the formula MX(X=halogen).

VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS-EFFICIENT
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  3. Which of these ions possesses the smallest radius?

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  4. An element with atomic number 64 will have the electronic configuratio...

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  5. Which of these is an incorrect statement?

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  6. The stability of ions of Ge Sn and Pb will be in the order .

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  7. Which of these chlorides will have the highest melting point?

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  9. Which of the following transitions involves maximum amount of energy?

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  11. The IE1 , IE2 , IE3 and IE4 of an element are 5.7, 11.03, 42.89, 57 e...

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  12. Among N, C, Si and P, which has highest electronegativity :

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  13. Calculate the electronegativity of fluorine from the following data: ...

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  14. Ionisation potential and electron affinity of fluorine are 17.42 and 3...

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  15. The elecron affinity of chlorine is 3. 7 eV. How much energy in kcal i...

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  16. If the covalent radius of silicon is 1.175 Å then its elec-tronegati...

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  17. Answer the following question (Based on EA, Delta(eg)H^(ɵ) and IE). I...

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  18. Property of the alkaline earth metals that increases down the group w...

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  19. The ionisation potentials of atoms A and B are 400 and 300 kcal mol^(-...

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  20. For the gaseous reaction K+F rarrK^(o+)+F^(ɵ) Delta H = 19 kcal mo...

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