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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4 7188

Q:

The highest mountain peak of Chhotanagpur Plateau is ________.

A) Dhoopgarh	B) Pachmarhi
C) Parasnath	D) Parasnath

Answer & Explanation Answer: C) Parasnath

Explanation:

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Filed Under: Indian Geography
Exam Prep: Bank Exams

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Q:

The Constituent Assembly of India started functioning from

A) 9th December,1946	B) 1st January, 1947
C) 26th January, 1947	D) 15th August, 1947

Answer & Explanation Answer: A) 9th December,1946

Explanation:

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Filed Under: Indian Politics

12 7185

Q:

Which classical dance is famous in Tamil Nadu?

A) Kuchipudi	B) Mohiniattam
C) Bharatanatyam	D) Kathakali

Answer & Explanation Answer: C) Bharatanatyam

Explanation:

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Filed Under: Indian Culture

76 7179

Q:

Complete the following sentence with the most appropriate option.

A king will always have a ____.

A) Minister	B) Kingdom
C) Sword	D) Queen

Answer & Explanation Answer: B) Kingdom

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

1 7177

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 7170

Q:

Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?

A) K1k2/k1+k2	B) 2k1k2/k1+k2
C) K1+k2/k1k2	D) None

Answer & Explanation Answer: B) 2k1k2/k1+k2

Explanation:

We know that,

The equivalent K = $\frac{L 1 + L 2}{\frac{L 1}{K 1} + \frac{L 2}{K 2}}$

where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively.

But here L1 = L2 = L (say)

Then K = L+L/(L/K1 + L/K2) = $\frac{2 K 1 K 2}{K 1 + K 2}$

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Q:

Rearrange the parts of the sentence in correct order.

Today India looks

P : to be on course

Q : of developed nations

R : to join the league

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

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