Q:

Find the missing number in the following puzzle?

A) 86	B) 98
C) 104	D) 112

Answer & Explanation Answer: B) 98

Explanation:

Here the answer is 98.

The logic in the given puzzle:

2+3 = 8
3+7 = (7+2)x3 = 27
4+5 = (5+3)x4 = 32
5+8 = (8+4)x5 = 60
6+7 = (7+5)x6 = 72

Similarly,

7+8 = (8+6)x7 = 98.

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Q:

Select the synonym of

scarcity

A) opulence	B) myriad
C) plethora	D) dearth

Answer & Explanation Answer: D) dearth

Explanation:

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Filed Under: English
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Q:

An element with an atomic number of ___ will form a basic oxide.

A) 20	B) 7
C) 6	D) 17

Answer & Explanation Answer: A) 20

Explanation:

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2 17212

Q:

NH3 oxidation number?

A) -1	B) +1
C) 0	D) -3

Answer & Explanation Answer: C) 0

Explanation:

NH3, Ammonia is a neutral compound as the individual oxidation numbers elements that make up the compound NH3 are Nitrogen (N) and Hydrogen (H) sum to zero.

We do not speak of the oxidation number of a molecule. We can speak of the oxidation numbers of the individual elements that make up the compound.

Here the oxidation number of Nirogen is -3 and that of Hydrogen is +1.

Now, NH3 = 1(-3) + 3(+1) = -3 + 3 = 0.

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Filed Under: Chemistry
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Q:

Improve the bracketed part of the sentence.

(It is no good to cry) over past failures.

A) It is of no good crying	B) It is of no good to cry
C) It is no good crying	D) no improvement

Answer & Explanation Answer: C) It is no good crying

Explanation:

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Filed Under: English
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Q:

Improve the bracketed part of the sentence.

(It is been seen) as a "prestige battle" for the PM and a litmus test for the president of the opposition party.

A) It have been seen	B) It is being seen
C) It had being seen	D) No improvement

Answer & Explanation Answer: B) It is being seen

Explanation:

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Q:

The absolute value of charge on electron was determined by

A) J.J.Thomson	B) R.A. Millikan
C) Rutherford	D) Chadwick

Answer & Explanation Answer: B) R.A. Millikan

Explanation:

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59 17186

Q:

Improve the bracketed part of the sentence.

The student (chose) to represent the school was the epitome of dedication and excellence.

A) chosen	B) is choosing
C) have chose	D) No improvement

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