Q:

What is the gram formula mass of ${Li}_{2} {SO}_{4}$ ?

A) 101.2487	B) 109.9446
C) 111.2687	D) 106.5871

Answer & Explanation Answer: B) 109.9446

Explanation:

The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound.

Given compound is Lithium Sulphate - ${Li}_{2} {SO}_{4}$

Elemental calculation ::

Li - Lithium - 6.941 - 2 - 13.88200 %
S - Sulfur - 32.065 - 1 - 32.065 %
O - Oxygen - 15.9994 - 4 - 63.9976 %

Now, total = 12.6264 + 29.1647 + 58.2090 = 109.9446

Hence, the gram formula mass of Li2SO4 = 109.9446.

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Q:

Which of these illustrates the Secondary Structure of a Protein?

chemistry1519110232.jpg image

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

Answer & Explanation Answer: B) B

Explanation:

The Secondary Structure of a Protein is option B)

The Secondary Structure of a Protein results from Hydrogen Bonds.

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Q:

Which of the following National Parks of India are declared as World Heritage by UNESCO?

1. Keoladeo National Park

2. Sundarbans National Park

3. Kaziranga National Park

4. Ranthambore National Park

Select the correct answer using the code given below.

A) 1 and 2 only	B) 1, 2 and 3 only
C) 3 and 4 only	D) 1, 2, 3 and 4

Answer & Explanation Answer: D) 1, 2, 3 and 4

Explanation:

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Filed Under: World Organisations
Exam Prep: Bank Exams

2 7107

Q:

Decibel is the unit of

A) speed of light	B) intensity of sound
C) intensity of heat	D) None of these

Answer & Explanation Answer: B) intensity of sound

Explanation:

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Filed Under: Physics

15 7106

Q:

What are the reasons for process suspension?

Answer

swapping

interactive user request

timing

parent process request

Workspace

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Subject: Operating Systems

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Q:

The lead character in the film ' The Bandit Queen ' has been played by

A) Shabana Azmi	B) Rupa Gangulu
C) Seema Biswas	D) Arundhati ray

Answer & Explanation Answer: C) Seema Biswas

Explanation:

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Filed Under: Books and Authors

10 7101

Q:

Which of the following element is NOT a metal?

A) Al	B) P
C) Ca	D) K

Answer & Explanation Answer: B) P

Explanation:

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Filed Under: Chemistry
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Q:

In plants, exchange of gases takes place through

A) Stomata	B) Palisade tissue
C) Spongy tissue	D) mid rib

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