Q:

Which one of the following statements regarding haemoglobin is correct?

A) Haemoglobin present in RBC can carry only oxygen but not carbon dioxide	B) Haemoglobin of RBC can carry both oxygen and carbon dioxide
C) Haemoglobin of RBC can carry only carbon dioxide	D) Haemoglobin is only used for blood clotting and not for carrying gases.

Answer & Explanation Answer: B) Haemoglobin of RBC can carry both oxygen and carbon dioxide

Explanation:

During respiration, about 97% of oxygen is transported by Red Blood Cells in blood and the remaining 3% gets dissolved in the plasma.Around 20-25% of carbon dioxide is carried by haemoglobin as carbamino-haemoglobin.

Oxygen enters the blood from the lungs and carbon dioxide is expelled out of the blood into the lungs. The blood serves to transport both gases. Oxygen is carried to the cells. Carbon dioxide is carried away from the cells.

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Q:

Which of the following molecules is joined by a double covalent bond?

A) Cl2	B) O2
C) N2	D) He2

Answer & Explanation Answer: B) O2

Explanation:

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Q:

Panaji is the capital of which Indian State?

A) Chattisgarh	B) Goa
C) Himachal Pradesh	D) Jharkhand

Answer & Explanation Answer: B) Goa

Explanation:

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Q:

The alimentary canal is a long tube that extends from ______.

A) mouth to stomach	B) stomach to large intestine
C) small intestine to anus	D) mouth to anus

Answer & Explanation Answer: D) mouth to anus

Explanation:

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Q:

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Carry the ball

A) Decorate the ball	B) Be in charge
C) Take the decision	D) Be the hostess

Answer & Explanation Answer: B) Be in charge

Explanation:

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Filed Under: English
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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.
Will-o-the wisp

A) Something that is impossible to get or achieve.	B) To keep off an unwanted and undesirable person.
C) To spend recklessly.	D) Accept or leave the offer.

Answer & Explanation Answer: A) Something that is impossible to get or achieve.

Explanation:

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Q:

Chemical formula for sulphurous acid is:

A) H2SO4	B) H2SO3
C) H3SO3	D) H3SO4

Answer & Explanation Answer: B) H2SO3

Explanation:

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Q:

What is the process of rust forming on iron called?

A) Rusting	B) Crystallisation
C) Shovel	D) Spade

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