NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 626 - 632 of 1259

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Question number: 626

» Environmental Chemistry » Water Pollution » Major Pollutants

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

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

b.

Polluted with pesticides

c.

Not polluted

d.

Very much polluted with inorganic chemicals

Question number: 627

» Biomolecules » Carbohydrates

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

Dextrin

b.

Maltose

c.

Glucose

d.

Cellulose

Question number: 628

» Environmental Chemistry » Soil Pollution » Major Pollutants

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

Domestic water

b.

Pesticides

c.

Mercuric salts

d.

Lead compounds

Question number: 629

» Environmental Chemistry » Water Pollution » Major Pollutants

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MCQ▾

Question

Which statement is not correct?

Choices

Choice (4)Response

a.

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

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MCQ▾

Question

Which one of the following in the main air pollutant?

Choices

Choice (4)Response

a.

b.

S

c.

d.

Question number: 631

» Biomolecules » Carbohydrates

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

Molisch’s test

b.

Silver Mirror test

c.

Fehling’s solution test

d.

Ozone test

Question number: 632

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

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MCQ▾

Question

The loss or reduction of chlorophyll in the leaves is termed?

Choices

Choice (4)Response

a.

Chlorosis

b.

Epinasty

c.

Necrosis

d.

Lichen

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