Water Chemistry (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 6 of 12

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Question number: 1

» Water Chemistry » Redox Potential

Appeared in Year: 2015

MCQ▾

Question

Corrosion normally occurs when an electrochemical cell is set up on a metal surface. The corroded area is: (June)

Choices

Choice (4) Response

a.

Electrolyte

b.

Anode

c.

Cathode

d.

Entire metal surface

Question number: 2

» Water Chemistry » Concept of DO, BOD, COD

Appeared in Year: 2015

MCQ▾

Question

BOD of the effluents discharged on land for irrigation should not exceed: (June)

Choices

Choice (4) Response

a.

100 mg/L

b.

60 mg/I.

c.

30 mg/L

d.

300 mg/I.

Question number: 3

» Water Chemistry » Chemistry of Water

Appeared in Year: 2009

MCQ▾

Question

The pair of molecules forming strongest intermolecular hydrogen bonds are – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 4

» Water Chemistry » Chemistry of Water

Appeared in Year: 2009

MCQ▾

Question

Liquid ammonia can be used in refrigeration because of its – (December)

Choices

Choice (4) Response

a.

High basicity

b.

Non-toxic nature

c.

High dipole moment

d.

High heat of vaporization

Question number: 5

» Water Chemistry » Chemistry of Water

Appeared in Year: 2015

MCQ▾

Question

The important continental silicate mineral weathering process of lowering carbon dioxide levels is: (June)

Choices

Choice (4) Response

a.

Carbonation

b.

Oxidation

c.

Reduction

d.

Hydrolysis

Question number: 6

» Water Chemistry » Concept of DO, BOD, COD

Appeared in Year: 2015

MCQ▾

Question

BOD of the effluents discharged on land for irrigation should not exceed: - (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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