Questions

Q:

Which Vitamins are those, if taken in excess can be dangerous as they are stored in the body?

A) B Complex B) E and C
C) B and C D) A and D
 
Answer & Explanation Answer: D) A and D

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Q:

Covalent bonds are formed when electrons are

A) Transfer of electrons B) Sharing of electrons
C) Dividing of electrons D) All of the above
 
Answer & Explanation Answer: B) Sharing of electrons

Explanation:

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

 

Examples of compounds with covalent bonds ::

HCl, CO2, O2,... 

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Q:

Group 7A of the periodic table contains the

A) most reactive metals B) least reactive non metals
C) most reactive non metals D) least reactive metals
 
Answer & Explanation Answer: C) most reactive non metals

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

He is suffering from fever for a week.

A) was suffering B) had suffering
C) has been suffering D) No improvement
 
Answer & Explanation Answer: C) has been suffering

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Q:

Which process requires no energy from the cell?

A) Osmosis B) Diffusion
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The processes both osmosis and diffusion come under passive transport and require no energy. The movement of solute from the region of higher concentration to the region of lower concentration is nothing but diffusion.

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Q:

Bacterial decomposition of biological material under anaerobic condition is

A) fermentation B) fertilization
C) contamination D) composting
 
Answer & Explanation Answer: A) fermentation

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Q:

Pune was once known as the capital of

A) Scindias B) Holkars
C) Bhosales D) Peshwas
 
Answer & Explanation Answer: D) Peshwas

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Q:

Select the word with the correct spelling.

A) missible B) saosages
C) emullator D) abdicate
 
Answer & Explanation Answer: D) abdicate

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