NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 157 - 164 of 1259

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Question number: 157

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

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MCQ▾

Question

Silver is refined by cupellation process. The process removes the impurity of?

Choices

Choice (4)Response

a.

Lead

b.

Platinum

c.

Gold

d.

Copper

Question number: 158

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

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Question

The oxidation state of chromium in the final product formed by the reaction between KI and acidified solution is?

Choices

Choice (4)Response

a.

+6

b.

+2

c.

+3

d.

+4

Question number: 159

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

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MCQ▾

Question

Malachite is mineral of?

Choices

Choice (4)Response

a.

copper

b.

magnesium

c.

Iron

d.

aluminium

Question number: 160

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

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Question

, what is A in this reaction?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 161

» D and F Block Elements » Transition Elements » Electronic Configuration

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MCQ▾

Question

Which h of the following pair of metal ions shows abnormal electronic configuration?

Choices

Choice (4)Response

a.

Cr, Cu

b.

V, Mn

c.

Fe, V

d.

Mn, Sc

Question number: 162

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

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MCQ▾

Question

The alloy used for making ignition devices such as tracer bullets?

Choices

Choice (4)Response

a.

Cinnabar

b.

Mischmetal

c.

Zincite

d.

Willemite

Question number: 163

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

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MCQ▾

Question

Zr and Hf have almost equal atomic and ionic radii because?

Choices

Choice (4)Response

a.

Zr and Hf belong to same transition series

b.

of diagonal relationship

c.

of lanthanide contraction

d.

of actinide contraction

Question number: 164

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

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MCQ▾

Question

Petigot’s salt is formed when potassium dichromate is treated with?

Choices

Choice (4)Response

a.

b.

c.

d.

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