Questions

Q:

Atmospheric pressure exerted on earth is due to

A) gravitational pull B) rotation of earth
C) revolution of earth D) uneven heating of earth
 
Answer & Explanation Answer: A) gravitational pull

Explanation:

The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.

 

That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds. 

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7 10081
Q:

Which of the following is the largest unit of storage?

A) GB B) KB
C) MB D) TB
 
Answer & Explanation Answer: D) TB

Explanation:

The storage capacity is measured in bytes, kilo bytes, mega bytes, giga bytes and tera bytes. The largest unit of storage is Tera bytes.

Which_of_the_following_is_the_largest_unit_of_storage1552389085.png image

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16 10076
Q:

Which acid is produced when milk gets sour?

A) Lactic acid B) Acetic acid
C) Tartaric acid D) Butyric acid
 
Answer & Explanation Answer: A) Lactic acid

Explanation:
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11 10076
Q:

The Chairman of the Public Accounts Committee of Parliament is appointed by the 

A) Prime Minister B) Speaker of the Lok Sabha
C) President D) Union Finance Minister
 
Answer & Explanation Answer: B) Speaker of the Lok Sabha

Explanation:

Though this is essentiallly a Committee of the House of the people (having 15 members from that house) , by an agreement between the two houses , 7 members from the other Houses are also associated with this Committee, in order to strengthen it.

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Filed Under: Indian Politics

29 10068
Q:

Which classical dance of the following is named after the village it was born from ?

A) Mohiniattam B) Bharatanatyam
C) Kuchipudi D) Kathakali
 
Answer & Explanation Answer: C) Kuchipudi

Explanation:
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Filed Under: Indian Culture

135 10061
Q:

Which compound is a nonelectrolyte?

A) C2H6O B) HCl
C) Na2CO3 D) NaCl
 
Answer & Explanation Answer: A) C2H6O

Explanation:

C2H6O is a Non-electrolyte.

 

An electrolyte is a compound that conducts an electric current when it is in an aqueous solution or melted. In order to conduct a current, a substance must contain mobile ions that can move from one electrode to the other. All ionic compounds are electrolytes. When ionic compounds dissolve, they break apart into ions which are then able to conduct a current ( conductivity ). Even insoluble ionic compounds such as CaCO 3 are electrolytes because they can conduct a current in the molten (melted) state.

 

A nonelectrolyte is a compound that does not conduct an electric current in either aqueous solution or in the molten state. Many molecular compounds, such as sugar or ethanol, are nonelectrolytes. When these compounds dissolve in water, they do not produce ions.

 

Electrolytes are of 3 types ---- Strong Electrolytes, Weak Electrolytes and Non Electrolytes.

 

Strong Electrolytes ---- Compounds which completely dissolves. ( NaCl, Na2Co3, HCl )

Weak Electrolytes ----- Compounds which do not completely dissolves.

Non Electrolytes ------ Compounds which do not dissolves at all.

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1 10049
Q:

The freezing point of water at 760mm pressure is

A) 0 K B) 273 K
C) 273 C D) -273 C
 
Answer & Explanation Answer: B) 273 K

Explanation:

K is degree kelvin

Zero K corresponds to -273  K = C + 273

The freezing point of water being 0 C, on the kelvin scale it is 0 C + 273 K

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Filed Under: Chemistry

12 10046
Q:

The world's largest biofuel plant with production capacity of 110 million liters of fuel annually has been set up in 

A) China B) India
C) Brazil D) USA
 
Answer & Explanation Answer: C) Brazil

Explanation:
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53 10045