Exams Questions and Answers

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

26 16304

Q:

Two boys starting from the same place walk at a rate of 5kmph and 5.5kmph respectively. What time will they take to be 8.5km apart, if they walk in the same direction?

A) 15 hours	B) 16 hours
C) 17 hours	D) 18 hours

Answer & Explanation Answer: C) 17 hours

Explanation:

In this type of questions we need to get the relative speed between them,
The relative speed of the boys = 5.5kmph – 5kmph
= 0.5 kmph

Distance between them is 8.5 km
Time = Distance/Speed
Time= 8.5km / 0.5 kmph = 17 hrs

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Filed Under: Time and Distance
Exam Prep: GRE

15 16296

Q:

Refer the below data table and answer the following question.

If the GDP of the country was $1 trillion at the end of 2013, what is it at the beginning of 2015?

A) $1.03 trillion	B) $1.04 trillion
C) $0.93 trillion	D) $1.07 trillion

Answer & Explanation Answer: B) $1.04 trillion

Explanation:

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Filed Under: Table Charts
Exam Prep: Bank Exams

0 16291

Q:

Select the Answer Figure that is the correct Water Image of the given Problem Figure.

A) A	B) D
C) B	D) C

Answer & Explanation Answer: B) D

Explanation:

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Filed Under: Image Analysis
Exam Prep: Bank Exams

0 16286

Q:

The main interface in Windows and OS X is __________ interface.

A) Command-line	B) Embedded
C) Neural	D) Graphical

Answer & Explanation Answer: D) Graphical

Explanation:

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Filed Under: Operating Systems
Exam Prep: Bank Exams
Job Role: Analyst , Bank Clerk , IT Trainer

52 16266

Q:

Which of the statements given below are correct?

1. The author of 'A Foreign Policy For India' is L.K Advani.
2. 'Wings of Fire' is a book written by A.P.J Abdul kalaam.
3. 'Open' is an Autobiography of Andre Agassi.

A) 1 and 2	B) 2 and 3
C) 1 and 3	D) 1, 2 and 3

Answer & Explanation Answer: B) 2 and 3

Explanation:

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Filed Under: Books and Authors
Exam Prep: Bank Exams

0 16259

Q:

Choose the correct picture which follows?

A) A	B) B
C) C	D) D

Answer & Explanation Answer: C) C

Explanation:

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Filed Under: Image Analysis
Exam Prep: Bank Exams

0 16257

Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Manufacture
ii. Manualism
iii.Manumission
iv. Manual

A) iv, ii, i, iii	B) iii, ii, i, iv
C) ii, iv, i, iii	D) i, ii, iii, iv

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