Questions

Q:

Rearrange the parts of the sentence in correct order

 

Further negotiations

P-are necessary
Q-to reach a common understanding
R-to enable implementation

 

A) QRP B) RPQ
C) PRQ D) PQR
 
Answer & Explanation Answer: D) PQR

Explanation:
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Q:

What is the gram formula mass of Li2SO4?

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 - Li2SO4

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:

Factors that may influence enzyme activity?

 

A) pH B) Substrate concentration
C) Temperature D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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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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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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Q:

Select the related word/letters/numbers from the given alternatives:

Owl : Hoots :: Hen : ?

A) Chirps B) Clucks
C) Coos D) Cackles
 
Answer & Explanation Answer: B) Clucks

Explanation:
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Q:

Which of the following statements is true?

The velocity of sound is :

 

A) less in summer than in winter B) same in winter and summer
C) independent of seasons D) more in summer than in winter
 
Answer & Explanation Answer: D) more in summer than in winter

Explanation:
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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 =  L1 + L2L1K1+L2K2

 

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)  =  2K1K2K1+K2

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