Questions

Q:

What is the capital of Jamica?

A) Jerusalem B) Kingston
C) Nairobi D) Dublin
 
Answer & Explanation Answer: B) Kingston

Explanation:

Capital of jamica is Kingston

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Q:

March 21 is observed as.......

A) World Environment Day B) World Forestry Day
C) World Greenary Day D) None of these
 
Answer & Explanation Answer: B) World Forestry Day

Explanation:
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Q:

Which of the following is Not a Greenhouse Gas?

A) Oxygen B) Methane
C) Nitrous Oxide D) Carbondioxide
 
Answer & Explanation Answer: A) Oxygen

Explanation:

A greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. 

 

Carbon dioxide is a main greenhouse gas, found in car exhaust pipes.
Methane and nitrous oxide is another type of greenhouse gas.



Oxygen is the only clean gas out there because we need it to survive. Therefore, the only gas that is not a greenhouse gas is Oxygen.

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Q:

Sound travels fastest in

A) Vacuum B) Air
C) Glass D) Water
 
Answer & Explanation Answer: C) Glass

Explanation:

Sound is a mechanical vibration and needs a medium for propagation. The higher the density of the medium, the faster the sound travels. So, sound cannot travel through vacuum.

 

As the sound travels faster in solids than liquids and gases, sound travels faster in the glass than Air and water.

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Q:

What is the bond order of O2?

A) 1.5 B) 2
C) 2.5 D) 1
 
Answer & Explanation Answer: B) 2

Explanation:

The number of bonds between a pair of atoms is called the bond order.

Bond orders can be calculated from Lewis structures, which are the heart of the valence-bond model. Oxygen, for example, has a bond order of two.

Structure

When there is more than one Lewis structure for a molecule, the bond order is an average of these structures. The bond order in sulfur dioxide, for example, is 1.5  the average of an S-O single bond in one Lewis structure and an S=O double bond in the other.

Structures

In molecular orbital theory, we calculate bond orders by assuming that two electrons in a bonding molecular orbital contribute one net bond and that two electrons in an antibonding molecular orbital cancel the effect of one bond. We can calculate the bond order in the O2 molecule by noting that there are eight valence electrons in bonding molecular orbitals and four valence electrons in antibonding molecular orbitals in the electron configuration of this molecule. Thus, the bond order is two.

Equation

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Q:

Irresistible craving for alcoholic drinks

A) Pyromania B) Kleptomania
C) Dipsomania D) Megalomania
 
Answer & Explanation Answer: C) Dipsomania

Explanation:

Dipsomania is one word substitute for Irresistible craving for alcoholic drinks.

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Q:

Lift was invented by

A) Otis B) Domagk
C) Lee De Forest D) None of these
 
Answer & Explanation Answer: A) Otis

Explanation:
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Q:

Which of these national parks has the world's largest population of the Indian one horned Rhino ?

A) Mrugavani national park B) Kajiranga national park
C) Manas national park D) Gir national park
 
Answer & Explanation Answer: B) Kajiranga national park

Explanation:
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Filed Under: General Awareness

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