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Q:

Lime water becomes white due to which gas?

 

A) CO2 B) O2
C) NO2   D) N2
 
Answer & Explanation Answer: A) CO2

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Filed Under: Chemistry
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1 47541
Q:

Fats, oils and cholesterol are all types of what?

 

 

A) Cell membranes B) Lipids
C) Hormones D) Fatty acids
 
Answer & Explanation Answer: D) Fatty acids

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Filed Under: Biology
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Q:

In which of the following, functional group isomerism is not possible?

 

A) Alcohols B) Aldehydes
C) Alkyl halides D) Cyanides
 
Answer & Explanation Answer: C) Alkyl halides

Explanation:

The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of chemical compounds derived from alkanes containing one or more halogens.Halogens can’t form more than one bond in the context of common organic compounds and can’t form multiple bonds to carbon.

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Q:

Carbon dioxide is one of the gases that cause the _________.

 

A) greenhouse effect   B) ozonification  
C) oven phenomenon   D) sunburn  
 
Answer & Explanation Answer: A) greenhouse effect  

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Q:

Which one of the following is commonly used as an indicator to measure the exact pH?

 

A) Eosin B) Phenolphthalein
C) Universal indicator D) Litmus
 
Answer & Explanation Answer: C) Universal indicator

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Q:

Arrange the following ina proper sequence.

A. Mutation

B. Reproductive isolation

C. Natural selection

D. Evolution

 

A) D,C,B,A B) C,B,A,D
C) A,C,D,B D) A,B,C,D
 
Answer & Explanation Answer: D) A,B,C,D

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Filed Under: Biology
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Q:

Which one of the following is a waterborne disease?

 

A) Tuberculosis B) Malaria
C) Cholera D) All the above
 
Answer & Explanation Answer: C) Cholera

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Q:

The effects of any drug depend on

 

 

A) The amount taken at one time B) The circumstances under which the drug is taken such as the simultaneous use of alcohol or other drugs, etc.
C) How the drug is consumed D) All the above
 
Answer & Explanation Answer: D) All the above

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