Question

Acidity of diprotic acid in aqueous solution increases in the order number *

1 point

a.H2S<H2Se<H2Te

b..H2Se<H2S<H2Te

c.H2Te<H2S<H2Se

d.H2Se<H2Te<H2S

2. S-S bond is present in *

1 point

a. H2S2O7

b. H2S2O5

C.H2S2O8

d.H2S2O6

3.Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy? *

1 point

(i) HF

(ii) HCl

(iii) HBr

(iv) HI

4. In the preparation of compounds of Xe, Bartlett had taken O2+ Pt F6– as a base compound. This is because *

1 point

(i) both O2 and Xe have same size.

(ii) both O2 and Xe have same electron gain enthalpy.

(iii) both O2 and Xe have almost same ionisation enthalpy.

(iv) both Xe and O2 are gases 1

5. Which of the following statements regarding ozone is not correct?  *

1 point

A. The oxygen-oxygen bond length in ozone is identical with that of molecular oxygen

B. The ozone is resonance hybrid of two structures

C. The ozone molecule is angular in shape

D. Ozone is used as a germicide and disinfectant for the purification of air 1

6. which of the following is Acidic? *

1 point

(A)SO3

(B)N2O

(C)BeO

(D)HgO

7 .shape of XeOF4 is *

1 point

(A)octahedral

(B)square pyramidal

(C) pyramidal

(D)T shaped

8. which of the following has highest Dipole moment. *

1 point

(A)CO2

(B)F2

(C)H2O

(D)BeF2

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Answer 1

Answer:

yeh kya hai. itna bada question