D and F Block Elements-Transition Elements (NEET Chemistry): Questions 41 - 42 of 42

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Question number: 41

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

MCQ▾

Question

The 3d metal ions are generally paramagnetic in nature because?

Choices

Choice (4) Response
a.

they are reducing agents

b.

they form coloured salts

c.

they have one or more paired s electrons

d.

they have one or more unpaired d electrons

Question number: 42

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

MCQ▾

Question

Silver halides are used in photography because these compounds are?

Choices

Choice (4) Response
a.

affected by light

b.

soluble in ammonia solution

c.

easily sticks on the surface of photographic plate

d.

insoluble in water

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