NEET Chemistry: Questions 201 - 206 of 677

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Question number: 201

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

half-filled 4 f shell

b.

possesses the electronic configuration of inert gases

c.

empty 4 f shell

d.

completely filled 4 f sub shell

Question number: 202

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Orthoborate

b.

Double oxide

c.

Tetarborate

d.

Metaborate

Question number: 203

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Al

b.

Ga

c.

In

d.

B

Question number: 204

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

MCQ▾

Question

Aluminium chloride exists as a dimer, Al2Cl6 , 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.

[Al(H2O)6]+3+3Cl

b.

Al2O3+6HCl

c.

[Al(H2O)6]3+3HCl

d.

Al+3+3Cl

Question number: 205

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

MCQ▾

Question

Borax is used as a cleansing agent because on dissolving in water, it gives?

Choices

Choice (4) Response

a.

Bleaching solution

b.

Acidic solution

c.

Neutral solution

d.

Alkaline solution

Question number: 206

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

MCQ▾

Question

Which of the following mixture is used to convert Al2O3 into anhydrous AlCl3 on heating?

Choices

Choice (4) Response

a.

Al2O3withHClgas

b.

A mixture of Al2O3andcarbonindryCl2gas

c.

Al2O3withCl2gas

d.

Al2O3withNaCl gas solid state

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