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.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

41 16202

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.

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

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

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

Report Error

View Answer Report Error Discuss

Filed Under: Number Puzzles
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

82 16200

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:

$∆ s = n R \ln \frac{v 2}{v 1}$

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

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE

43 16192

Q:

Which subatomic particle has a positive charge?

A) Proton	B) Neutron
C) Electron	D) Ion

Answer & Explanation Answer: A) Proton

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 16191

Q:

What bet can never be won?

Answer

ALPHABET is the bet can never be won.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO

107 16177

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

Report Error

View Answer Report Error Discuss

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

25 16170

Q:

Rearrange the parts of the sentence in correct order.

There is

P : large quantum of pesticides sold

Q : to farmers today is spurious

R : worrying evidence that a

A) PRQ	B) RPQ
C) QPR	D) PQR

Answer & Explanation Answer: B) RPQ

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams , GRE , TOEFL

0 16161

Q:

Improve the bracketed part of the sentence.

The state has (declined negotiate) any more trade-offs on this proposal or accept calls for stringent transparency requirements.

A) declined to negotiation	B) declined to negotiating
C) declined to negotiale	D) No improvement

Questions

Quick Links