General Knowledge Questions

Q:

Place these hydrocarbons in order of decreasing boiling point.

1. Paraffin

2. Octadecane

3. Hexane

4. Neohexane and

5. Ethane

A) Paraffin > Octadecane > Neohexane > Hexane > Ethane B) Paraffin > Octadecane > Hexane > Neohexane > Ethane
C) Hexane > Paraffin > Octadecane > Neohexane > Ethane D) None of the above
 
Answer & Explanation Answer: B) Paraffin > Octadecane > Hexane > Neohexane > Ethane

Explanation:

In hydrocarbon, the boiling point directly varies with the length of carbon chain. On increasing the number of carbon atom, the boiling point of the compound also increases. Paraffin contains highest number of carbon atoms whereas, ethane is comprised of two carbon atoms.

 

The decreasing order of boiling point of mention compounds is written as follows:

Paraffin > Octadecane > Hexane > Neohexane > Ethane

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Q:

What colors make green?

 

 

A) Blue & Red B) Red & White
C) Yellow & Red D) Yellow & Blue
 
Answer & Explanation Answer: D) Yellow & Blue

Explanation:

We all know that green is one among the three primary colors in additive mixing.

 

what_colors_make_green1605081805.jpg image 

 

By mixing blue and yellow colors we get green color.

 

 

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Q:

Select the synonym of

 

sentry

A) bandit B) competitor
C) sentinel D)  foe
 
Answer & Explanation Answer: C) sentinel

Explanation:
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Q:

Rearrange the parts of the sentence in correct order.

The twenty ­four tributes
P - ­that could hold anything from a
Q­ - will be imprisoned in a vast outdoor arena
R­ - burning desert to a frozen wasteland

A) PQR B) PRQ
C) QPR D) RQP
 
Answer & Explanation Answer: C) QPR

Explanation:
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Q:

Select the synonym of

snatch

A) detonate B) bequeath
C) confer D) wrench
 
Answer & Explanation Answer: D) wrench

Explanation:
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Q:

The group of crop plant that are vegetatively propagated is:

 

A) potato,papaya and banana B) Sugarcane,potato and banana
C) groundnut,drumstick and cashew nut D) Onion,coriander and lime
 
Answer & Explanation Answer: B) Sugarcane,potato and banana

Explanation:
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Q:

Methane contributes towards global warming so it is called a _________________ gas.

 

A) poisonous B) carcinogenic
C) infectious D) greenhouse
 
Answer & Explanation Answer: D) greenhouse

Explanation:
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Q:

Saturated carbon compounds can form which types of chain structures?

 

I. Straight chain

II. Branched chain

 

A) Only I B) Only II
C) Neither I nor II   D) Both I and II
 
Answer & Explanation Answer: D) Both I and II

Explanation:
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