Q:

The reduction potential of hydrogen half-cell will be negative if :
(1) $P (H_{2})$ = 2 atm and [H+] = 2.0 M
(2) $P (H_{2})$ = 1 atm and [H+] = 2.0 M
(3) $P (H_{2})$ = 1 atm and [H+] = 1.0 M
(4) $P (H_{2})$ = 2 atm and [H+] = 1.0 M

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: D) Option 4

Explanation:

$H^{+} - e^{-} \to \frac{1}{2} H_{2}$

Apply Nernst equation

$E = 0 - \frac{0.059}{1} \log (\frac{P H_{2}^{\frac{1}{2}}}{[H^{+}]})$

$E = - \frac{0.059}{1} \log (\frac{2^{\frac{1}{2}}}{1})$

Therefore E is Negative

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Estonia is a country in which continent?

A) Asia	B) South America
C) Europe	D) Africa

Answer & Explanation Answer: C) Europe

Explanation:

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Filed Under: World Geography
Exam Prep: Bank Exams

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Q:

__________ networks are connected by telephones, underwater cables and satellites.

A) Typewriter	B) DVD
C) Computers	D) Washing Machine

Answer & Explanation Answer: C) Computers

Explanation:

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Q:

Which of the statements given below are correct?

A) Rafael Nadal won the Tennis 2017 Australian Open Men's Singles.

B) In 2017, Maverick Viñales raced in MotoGP for Yamaha.

C) In 2017, Lewis Hamilton raced in Formula One for Ferrari.

A) Only B	B) Only C
C) B and C	D) A and B

Answer & Explanation Answer: A) Only B

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

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Q:

The Rigvedic God Varuna was

A) Harbinger of peace	B) Destoyer of foes
C) Guardian of the cosmic order	D) God of prosperity

Answer & Explanation Answer: C) Guardian of the cosmic order

Explanation:

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Filed Under: Indian History

19 15548

Q:

What goes in the water black and comes out red

Answer

A Lobster is one which goes black in water and comes out red.

lobster1585556605.jpg image

Workspace

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

45 15545

Q:

The main job of a CPU is to

A) carry out program instructions	B) store data/ information for future use
C) Process data and information	D) both (a) and (c)

Answer & Explanation Answer: D) both (a) and (c)

Explanation:

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Job Role: Bank PO

50 15533

Q:

First Indian woman to participate in Olympics?

A) Karnam Malleswari	B) Mary Kom
C) P.V. Sindhu	D) Geeta Phogat

Answer & Explanation Answer: A) Karnam Malleswari

Explanation:

The first Indian woman to ever win an Olympic medal was Karnam Malleswari who won a bronze medal at the Sydney Olympics in the Women's 69 kg category in Weightlifting.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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