D and F Block Elements-Transition Elements (NEET Chemistry): Questions 35 - 40 of 42

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Question number: 35

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

Which of the following acid is used to maintain acidic medium in potassium permanganate?

Choices

Choice (4) Response

a.

HCl

b.

HNO3

c.

H2SO4

d.

HBr

Question number: 36

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

In permanganate ion, the manganese undergoes which of the following hybridization?

Choices

Choice (4) Response

a.

sp3d

b.

sp

c.

sp2

d.

sp3

Question number: 37

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

A blue colouration is not obtained when?

Choices

Choice (4) Response

a.

anhydrous copper sulphate is dissolved in water

b.

NH4OH is added to copper sulphate solution

c.

copper sulphate is added to K4Fe(CN)6 solution

d.

FeCl3 is added to K4Fe(CN)6 solution

Question number: 38

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

Zinc becomes dull in moist air, due to the formation of which compound?

Choices

Choice (4) Response

a.

Zinc Carbonate

b.

Zinc Chloride

c.

Zinc sulphate

d.

Zinc oxide.

Question number: 39

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

Name the compound of dichromate used in volcano experiment?

Choices

Choice (4) Response

a.

(NH4)2Cr2O7

b.

(NH4)2Cr2O3

c.

(NH4)5Cr2O7

d.

(NH4)3Cr2O7

Question number: 40

» D and F Block Elements » Transition Elements » Trends in Properties

MCQ▾

Question

A little acid is always added in the preparation of aqueous ferrous sulphate solution, why?

Choices

Choice (4) Response

a.

To reach neutralization

b.

To catalyze the hydrolysis

c.

To make solution more acidic

d.

To prevent hydrolysis

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