Questions

Q:

Which of the following is not an intensive property?

A) Weight B) Density
C) Refractive index D) Melting point
 
Answer & Explanation Answer: A) Weight

Explanation:

An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example, the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system, if the system is divided in half, the mass and the volume change in the identical ratio and the density remains unchanged. Additionally, the boiling point of a substance is another example of an intensive property. For example, the boiling point for water is 100 °C at a pressure of one atmosphere, a fact which remains true regardless of quantity.

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Q:

According to new federal data released, the US state whose economy has surpassed that of the UK to become the world’s fifth largest was

A) Massachusetts B) Florida
C) Hawaii D) California
 
Answer & Explanation Answer: D) California

Explanation:

The US state California's  economy has surpassed that of the UK to become the world’s fifth largest, according to new federal data released.

 

With a GDP of $2.7 trillion, California is now only behind the US, China, Japan and Germany.

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Q:

What types of orbital overlap occur in Cumulene?

Answer

A cumulene is a hydrocarbon with three or more cumulative double bonds. They are analogous to allenes, only having a more extensive chain. The simplest molecule in this class is butatriene, which is also called simply cumulene.


 


The carbons on the ends are sp² hybridized, with a p-orbital for the 'second' bond in the double bond with their neighboring carbons.


They have those sp² orbitals overlapping with the s from the hydrogen, and they have a p overlapping in the pi bond with the neighboring carbon. They also have a sigma bond with the neighboring carbon I'll get to.


The middle carbons each have two pi bonds with their neighbors, leaving sp hybridiaztion for the rest. So they have sp/sp² with the end carbons, and sp/sp with each other. (And they also have p/p in the pi bonds).


 


All orbital overlappings in Cumuene are :


* s/sp²


* p/p


* sp/sp²


* sp/sp

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Q:

Which of the following serve as antibodies?

A) Proteins B) Lipids
C) Carbohydrates D) Nucleic acids
 
Answer & Explanation Answer: A) Proteins

Explanation:
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Q:

Which one of the following is not an award given on the National Awards Day

A) Rajiv Khel Ratna B) Arjun Award
C) Dhyanchand Award D) Vishwamitra Award
 
Answer & Explanation Answer: D) Vishwamitra Award

Explanation:
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Q:

Why did charles babbage invent the computer?

Answer

Charles Babbage, the father of computer, invented the first general-purpose computer in an effort to prevent the mathematical errors that were prevalent in the human-calculated mathematics of his time.

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Q:

Warts are contagious.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Yes. Warts are contagious.


You can get warts from touching a wart on someone else's body or by coming in contact with surfaces that touched someone's warts, such as towels or bathmats.


warts_are_contagious1532510865.jpg image


 


Hence, the given statement that, 'Warts are contagious' is TRUE.

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Q:

Which statement is one component of the cell theory?

A) DNA is the basis of genetic transfer B) All living cells arise from pre-existing cells
C) All cells are composed of same organelles D) Tissues are formed from combinations of cells
 
Answer & Explanation Answer: B) All living cells arise from pre-existing cells

Explanation:

All living cells arise from pre-existing cells is one component of the cell theory.

 

The Cell Theory is one of the basic principles of biology.

 

The Cell Theory states:

1. All living organisms are composed of cells. They may be unicellular or multicellular.

2. The cell is the basic unit of life.

3. Cells arise from pre-existing cells.

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