Q:

The electrochemical cell stops working after some time because ________

A) Electrode potential of both the electrodes becomes zero	B) One of electrodes completely vanishes
C) Electrode potential of both electrodes equalizes	D) The reaction reverses its direction

Answer & Explanation Answer: C) Electrode potential of both electrodes equalizes

Explanation:

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Filed Under: Chemistry

92 16214

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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41 16205

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
Exam Prep: AIEEE

43 16197

Q:

Choose the word which is nearly opposite in meaning to the given word:-

Acrimonious

A) Legal	B) Severe
C) Cursive	D) Harmonious

Answer & Explanation Answer: D) Harmonious

Explanation:

Acrimonious means angry (typically of speech or discussion)Legal means relating to lawSevere means extremeCursive means written with the letters joinedHarmonious means sweet-soundingwhichis nearly opposite meaning to Acrimonious

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Filed Under: English
Exam Prep: Bank Exams

0 16197

Q:

Select the synonym of

preacher

A) atheist	B) agnostic
C) evangelist	D) pagan

Answer & Explanation Answer: D) pagan

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 16197

Q:

Who is the custodian of indian constitution?

A) Supreme Court	B) Cabinet Ministers
C) President	D) Parliament

Answer & Explanation Answer: A) Supreme Court

Explanation:

The president is the nominal custodian of the Indian constitution but the ideal custodian is the supreme court of India.

Who_is_the_custodian_of_indian_constitution1557491256.jpg image

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Filed Under: Indian Politics
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

25 16196

Q:

Valency of an element depends on which of the following?

I. Number of losing electron

II. Number of gaining electron

III. Number of sharing electron

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: D) All I, II and III

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 16180

Q:

Select the antonym of

to conceive

A) to reckon	B) to neglect
C) to apprehend	D) to perceive

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