NEET Chemistry: Questions 240 - 246 of 677

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Question number: 240

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

MCQ▾

Question

Blue liquid which is formed at -300C by mixing of two gases is?

Choices

Choice (4) Response
a.

N2O4

b.

N2O

c.

N2O3

d.

N2O5

Question number: 241

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

MCQ▾

Question

B2H6+NaHX, What is X and it is used as?

Choices

Choice (4) Response
a.

Organic agent

b.

Oxidizing agent

c.

Reducing agent

d.

Inorganic agent

Question number: 242

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

MCQ▾

Question

Which of the following is correct?

Choices

Choice (4) Response
a.

NO2 on reaction with NaOH gives a mixture of two salts

b.

NO2 is a sweet smelling and is angular in shape

c.

N2O is a laughing gas is angular in shape

d.

NO is a colourless gas and acid in nature

Question number: 243

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

MCQ▾

Question

Aqueous solution of borax acts as a buffer because?

Choices

Choice (4) Response
a.

It contains weak acid and its salt with strong base

b.

It contains number of neutral water molecules

c.

It contains tribasic acid and strong base

d. Question does not provide sufficient data or is vague

Question number: 244

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

MCQ▾

Question

Which of the following compounds is formed is formed when boron trichloride is treated with water?

Choices

Choice (4) Response
a.

B2O3+HCl

b.

B2H6+HCl

c.

H3BO3+HCl

d. None of the above

Question number: 245

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

MCQ▾

Question

The chief impurity present in red bauxite is?

Choices

Choice (4) Response
a.

NaF

b.

Fe2O3

c.

SiO2

d.

K2SO4

Question number: 246

» P-Block Elements Group 13 to 18 » Group 14 » Allotropes of Carbon

MCQ▾

Question

Which of the following can absorb carbon monoxide?

Choices

Choice (4) Response
a.

Plants

b.

Alcohol

c.

Ammonical solution of cuprous chloride

d.

Ni (CO) 4

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