Questions

Q:

Which of the following statements is Incorrect?

A) Atomic size increases from top to bottom B) All the elements of a group have same valency
C) Isotopes of the same elements are placed in the same group D) Atomic radius generally decreases from left to right
 
Answer & Explanation Answer: C) Isotopes of the same elements are placed in the same group

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Filed Under: Chemistry
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Q:

When electricity is passed through an aqueous solution of Sodium Chloride (brine), it decomposes to form.

 

A) NaOH + H2 + Cl2 B) NaOH + H2 + O2
C) NaOH + HCl + H2 D) NaOH + H2 + N2
 
Answer & Explanation Answer: A) NaOH + H2 + Cl2

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Q:

The universal natural auxin of plants is

A) IBA B) Citric auxin
C) NAA D) IAA
 
Answer & Explanation Answer: D) IAA

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Filed Under: Biology
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Q:

Which is the 1st country to recognise Pfizer-bioNtech's coronavirus vaccine?

A) Russia B) Britain
C) Australia D) India
 
Answer & Explanation Answer: B) Britain

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Q:

What does Coulomb's Law state?

A) The magnitude of the force of attraction (or repulsion) between two point charges is inversely proportional to the product of quantity of the two charges as well as to the square of the distance between them.   B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.  
C) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and directly proportional to the square of the distance between them. D) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and to the square of the distance between them.
 
Answer & Explanation Answer: B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.  

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Filed Under: Physics
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Q:

Who does not the kinetic energy of an object increase with?

A) Friction B) Time
C) Mass D) Speed
 
Answer & Explanation Answer: D) Speed

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Filed Under: Physics
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Q:

The best way to deal with a tailgater is to

A) Speed up to increase the distance between you and the tailgater B) Change lanes or gradually slow down to encourage them to pass
C) Slam on your brakes to get the other driver to back off D) Ignore them
 
Answer & Explanation Answer: B) Change lanes or gradually slow down to encourage them to pass

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

 

The best of both worlds

A) To live like a saint so that you are the best in the living world as well as the heavens B) To be lucky in life as well as in death
C) The benefits of widely differing situations, enjoyed at the same time D) To be popular amongst both the opposing groups
 
Answer & Explanation Answer: C) The benefits of widely differing situations, enjoyed at the same time

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