General Science Chemistry MCQs

Q.  Which of the following material is used to make control rods in a nuclear reactor?

a. Indium
b. Boron
c. Cadmium
d. All of the above


ANSWER: See Answer
 
The reaction rate is controlled through control-rods made out of neutron-absorbing materials. They are composed of chemical elements such as boron, silver, indium and cadmium that are capable of absorbing many neutrons without themselves fissioning.
MCQs:  Which of the following is correct about Aromatic hydrocarbons?
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MCQs:  Which of these polymers is used for controlled drug release in the body?
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MCQs:  Which of these polymers is formed by the polymerization of the dimer of lactic acid?
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MCQs:  Which of the following metals is involved in the anodisation process?
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MCQs:  Which of these metals is commonly used in tanning of leather?
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MCQs:  Which of these non-metals is lustrous?
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MCQs:  Which of these non-metals is commonly used in fire-crackers?
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MCQs:  Which of these chemicals is used as a water softening agent?
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MCQs:  Which of these is the reason for the temporary hardness in water?
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MCQs:  Which of these cannot be the reason for the permanent hardness in water?
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MCQs:  Which part of the soap dissolves in water?
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MCQs:  Which of these drugs help to reduce or abolish pain without causing impairment of consciousness?
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MCQs:  Which of the following metals is the first metal used by a man?
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MCQs:  Which of the following is the process to remove calcium and magnesium from hard water?
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MCQs:  After whom is the chemical element with atomic number 102 named?
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MCQs:  What is the process used to separate the different components of oil?
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MCQs:  What is the main constituent of coal gas?
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MCQs:  Which of the following gases were called Fixed Air by Scottish physician Joseph Black which is discovered in 1750s?
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MCQs:  Who discovered Benzene?
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MCQs:  Which of the following subatomic particle was discovered by Goldstein on the basis of the cathode ray experiment?
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