NEET Chemistry: Questions 625 - 631 of 677

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Question number: 625

» Organic Compounds With Oxygen » Aldehyde and Ketones » Nature of Carbonyl Group

MCQ▾

Question

Which of the following statements is wrong?

Choices

Choice (4) Response
a.

Aldehydes and ketones are good reducing agents

b.

Aldehydes are more reactive than ketones

c.

Aldehydes and ketones are polar compounds

d.

Aldehydes and ketones are reduced to alcohols.

Question number: 626

» Environmental Chemistry » Water Pollution » Major Pollutants

MCQ▾

Question

If BOD rives in high, it means that the river is?

Choices

Choice (4) Response
a.

Not polluted

b.

Very much polluted with organic chemicals which are decomposed by micro-organisms

c.

Polluted with pesticides

d.

Very much polluted with inorganic chemicals

Question number: 627

» Biomolecules » Carbohydrates

MCQ▾

Question

Which of the following carbohydrates is involved in the process of mercerization?

Choices

Choice (4) Response
a.

Glucose

b.

Cellulose

c.

Dextrin

d.

Maltose

Question number: 628

» Environmental Chemistry » Soil Pollution » Major Pollutants

MCQ▾

Question

Which one of the following pollutants is bio-degradable pollutant?

Choices

Choice (4) Response
a.

Domestic water

b.

Mercuric salts

c.

Lead compounds

d.

Pesticides

Question number: 629

» Environmental Chemistry » Water Pollution » Major Pollutants

MCQ▾

Question

Which statement is not correct?

Choices

Choice (4) Response
a.

CO is the main air pollutant

b.

All pollutant are not waster

c.

Water is pollutant by dissolved oxygen

d.

Lichens are pollution indicators

Question number: 630

» Environmental Chemistry » Tropospheric Pollutants » Gaseous Pollutants: Oxides of Carbon, Nitrogen and Sulphur

MCQ▾

Question

Which one of the following in the main air pollutant?

Choices

Choice (4) Response
a.

S

b.

CO

c.

CO2

d.

N2

Question number: 631

» Biomolecules » Carbohydrates

MCQ▾

Question

In which of the following test for carbohydrates α - naphthol is used?

Choices

Choice (4) Response
a.

Ozone test

b.

Silver Mirror test

c.

Fehling’s solution test

d.

Molisch’s test

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