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 15299

Q:

Arakan yoma is the extension of the himalayas located in

A) Myanmar	B) West Bengal
C) Nagaland	D) Baluchistan

Answer & Explanation Answer: A) Myanmar

Explanation:

Arakan yoma is the extension of the himalayas located in Myanmar. The Arakan Mountains are also known as the Rakhine Mountains.

Arakan_yoma_is_the_extension_of_the_himalayas_located_in1558508556.jpg image

These are a mountain range in western Myanmar, between the coast of Rakhine State and the Central Myanmar Basin, in which the Irrawaddy River flows.

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Filed Under: Indian Geography
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10 15276

Q:

Vaccination against which disease was conducted recently as a National Vaccination Day?

A) Polio	B) Cholera
C) Malaria	D) Tuberculosis

Answer & Explanation Answer: A) Polio

Explanation:

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Filed Under: Biology
Exam Prep: Bank Exams

2 15257

Q:

What do eukaryotic cells have that prokaryotic cells do not?

A) Nucleus	B) Cytoplasm
C) Ribosomes	D) DNA

Answer & Explanation Answer: A) Nucleus

Explanation:

ep1527656002.jpg image

Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects.

Whereas Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. Bacteria are an example of prokaryotes.

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Filed Under: Biology
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34 15256

Q:

Improve the bracketed part of the sentence.

The candidate was likely to win the assembly elections (with the) sweeping majority.

A) by the	B) with a
C) by a	D) no improvement

Answer & Explanation Answer: C) by a

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 15253

Q:

Select the synonym of

meadow

A) metro	B) pasture
C) borough	D) civic

Answer & Explanation Answer: B) pasture

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 15248

Q:

_ pompous he was an entertaining person.

A) Though	B) Never
C) Despite	D) Before

Answer & Explanation Answer: A) Though

Explanation:

From the given options, Though is the only word which gives sense for the sentence. Hence, Though pompous he was an entertaining person.

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Filed Under: English
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Q:

What value should come in place of the question mark (?) in the following question?

$\frac{5^{2} x 14 + 1450}{18} = 1998 \div ?$

A) 18.25	B) 19.98
C) 34.58	D) 65.25

Answer & Explanation Answer: B) 19.98

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

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