NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 199 - 204 of 1259

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Question number: 199

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

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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: 200

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

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MCQ▾

Question

Silver halides are used in photography because these compounds are?

Choices

Choice (4)Response

a.

insoluble in water

b.

soluble in ammonia solution

c.

easily sticks on the surface of photographic plate

d.

affected by light

Question number: 201

» D and F Block Elements » Inner Transition Elements » Lanthanides

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MCQ▾

Question

The reason for the stability of Gd +3 ions is?

Choices

Choice (4)Response

a.

possesses the electronic configuration of inert gases

b.

empty 4 f shell

c.

half-filled 4 f shell

d.

completely filled 4 f sub shell

Question number: 202

» P-Block Elements Group 13 to 18 » Group 13 » Boron

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MCQ▾

Question

Which of the following compound is formed in borax bead test?

Choices

Choice (4)Response

a.

Metaborate

b.

Double oxide

c.

Orthoborate

d.

Tetarborate

Question number: 203

» P-Block Elements Group 13 to 18 » Groupwise Study of the P - Block Elements

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MCQ▾

Question

Which one of the following is nonmetal in group III elements?

Choices

Choice (4)Response

a.

Ga

b.

Al

c.

In

d.

B

Question number: 204

» P-Block Elements Group 13 to 18 » Group 13 » Aluminum

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MCQ▾

Question

Aluminium chloride exists as a dimer, , in solid state as well as in solution of non polar solvents such as benzene. When dissolved in water, it gives?

Choices

Choice (4)Response

a.

b.

c.

d.

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