Questions

Q:

In case of a standard hydrogen electrode

A) absolute electrode potential is not zero B) absolute electrode potential is zero
C) both absolute and standard electrode potential values are zero D) electrode potential is zero only at 25 deg C
 
Answer & Explanation Answer: A) absolute electrode potential is not zero

Explanation:

The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential (E0) is declared to be zero volts only at 298.

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1 2068
Q:

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the “No error” option.

A. He has made a mistake

B. of which

C. I am certain

D. No error

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:
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Q:

Improve the bracketed part of the sentence.
The equipment is (adapted to) cotton industries.

A) Adapted from B) Adapted for
C) Adapted of D) No improvement
 
Answer & Explanation Answer: B) Adapted for

Explanation:
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Q:

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Phlegmatic

A) Ardent B) Indifferent
C) Prohibit D) Merciless
 
Answer & Explanation Answer: A) Ardent

Explanation:
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Q:

Which statement best describes perigee?

A) The closet point in the Moon's orbit to Earth B) The farthest point in the Moon's orbit to Earth
C) The closest point in Earth's orbit of the Sun D) The Sun's orbit that is closest to the Moon
 
Answer & Explanation Answer: A) The closet point in the Moon's orbit to Earth

Explanation:

The closet point in the Moon's orbit to Earth is called perigee whereas the farthest point in the Moon's orbit to Earth is called apogee.

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2 2067
Q:

How CNG is a cleaner fuel?

I. It produces oxides of Sulphur and Nitrogen in very small amounts.
II. It makes environment less polluted.
III. It emits less greenhouse gases.

A) Only I and II B) Only II and III
C) Only I and III D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

Explanation:
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Q:

Which among the following has the maximum density?

A) Water B) Ice
C) Ethylene D) Acetone
 
Answer & Explanation Answer: A) Water

Explanation:
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Q:

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- The magnitude of the interdependence depends on the technique of production causing the shifts in the food supply curve.
Q- Interdependence of food and labour market is important for the development process.
R- Similarly, an upward shift in the food supply curve shifts up the food demand curve.
S- An upward shift in the food supply curve would simultaneously result in an upward shift in the labour demand curve.

A) QSPR B) QPRS
C) PSRQ D) SPQR
 
Answer & Explanation Answer: A) QSPR

Explanation:
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