Q:

Temporary hardness is due to the presence of

A) Calcium carbonate	B) calcium bicarbonate
C) magnesium sulphate	D) calcium sulphate

Answer & Explanation Answer: B) calcium bicarbonate

Explanation:

Temporary hardness is due to the presence of soluble bicarbonates of calcium and magnesium in water. Permanent hardness is due to the presence of sulphates and chlorides of calcium and magnesium.

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Filed Under: Chemistry

41 16202

Q:

Improve the bracketed part of the sentence

The good fortune of (my being) your disciple in my youth has greatly benefited me in my career.

A) my having been	B) myself being
C) being	D) no improvement

Answer & Explanation Answer: A) my having been

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

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Q:

Select the antonym of

loiter

A) lag	B) hasten
C) amble	D) loll

Answer & Explanation Answer: B) hasten

Explanation:

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Exam Prep: Bank Exams

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Q:

The famous Kosijura Case of Bengal happened in whose reign?

A) Warren Hastings	B) Lord Cornwallis
C) John Shore	D) Wellesley

Answer & Explanation Answer: A) Warren Hastings

Explanation:

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Q:

The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 $d m^{3}$ at 27°C is to a volume of 100 $d m^{3}$

A) 42.3 J/ mole / K	B) 38.3 J/ mole / K
C) 35.8 J/ mole / K	D) 32.3 J/ mole / K

Answer & Explanation Answer: B) 38.3 J/ mole / K

Explanation:

$∆ s = n R \ln \frac{v 2}{v 1}$

$= 2.303 n R \log \frac{v 2}{v 1}$ = $2.303 \times 2 \times 8.314 \times \log (\frac{100}{10})$ = $38.3 J$ $m o l^{- 1}$ $k^{- 1}$

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Filed Under: Chemistry
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Q:

______________ among the following is not a type of JavaScript.

A) text/JavaScript	B) text/ecmascript
C) text/vbscript	D) JavaScript vbscript

Answer & Explanation Answer: D) JavaScript vbscript

Explanation:

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7 16189

Q:

Find the Missing Numbers in the given Number Puzzle ?

A) 169 & 81	B) 67 & 121
C) 64 & 115	D) 70 & 110

Answer & Explanation Answer: A) 169 & 81

Explanation:

Observe that in each column, square of sum of digits in the first row = Respective second row elements.

In the same way, square of sum of digits in the second row = Respective third row elements.

=> ${(6 + 4)}^{2} = 10^{2} = 100$

=> ${(4 + 9)}^{2} = 13^{2} = 169$

=> ${(8 + 1)}^{2} = 9^{2} = 81$ .

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Filed Under: Number Puzzles
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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82 16188

Q:

Select the synonym of

to concoct

A) to obliterate	B) to contrive
C) to decimate	D) to pulverize

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