AIEEE Questions

Q:

Which of the following reactions are redox reactions?

A) Ba(s)+Cl2(g)--->BaCl2(s) B) Mg(s)+Br2(l)--->MgBr2(s)
C) Al(s)+3Ag^+(aq)--->Al^3+(aq)+3Ag(s) D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A redox reaction is a type of reaction which involves transfer of electrons among two species. This reaction is also called oxidation-reduction reaction.

In oxidation process, there is an increase in oxidation state of an atom, ion or molecule by losing the electrons.

In reduction process, there is a decrease in oxidation state of an atom, ion or molecule by accepting the electrons.

1)

image

In this reaction, Ba undergoes oxidation and Cl undergoes reduction.
This reaction is redox reaction.
In this reaction, oxidation number of Ba increases from 0 to +2 . So, Ba undergoes oxidation. The oxidation number of Cl decreases from 0 to -1. So, Cl undergoes reduction.

 

2) 

 

image

From this above reaction, it is clear that Aluminum undergoes oxidation and silver undergoes reduction.
Due to this, this reaction is redox reaction.

In this reaction, oxidation number of Aluminum increases from 0 to +1. So, aluminum undergoes oxidation. The oxidation number of silver decreases from +1 to 0. So, silver undergoes reduction.

 

3)


image

In this reaction, Mg undergoes oxidation and Br undergoes reduction.
This reaction is redox reaction.
The reactions 1, 3 and 4 are redox reactions.
In this reaction, oxidation number of Mg increases from 0 to +2 . So, Mg undergoes oxidation. The oxidation number of Br decreases from 0 to -1 . So, Br undergoes reduction.

 

Hence all the above reactions are redox reactions.

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Filed Under: Chemistry
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Q:

Translator program used in assembly language

A) Assembler B) Interpreter
C) Compiler D) Operating system
 
Answer & Explanation Answer: A) Assembler

Explanation:

Assemblers are used to translate a program written in a low-level assembly language into a machine code (object code) file so it can be used and executed by the computer.

 

Hence, Assembler is the translator program used in assembly language.

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Q:

Which capital gains tax on property?

Answer

Capital Gains Tax on Property:


1. Short term,


2. Long term


 


Short Term Capital Gain on property is considered as a gain from selling a property which was held by you for less than 36 months. As a taxpayer, you are liable to pay tax on short term capital gain on property as per your applicable marginal income tax slab.


* Current Short Term Capital Gains tax rate is 30%.


 


Long Term Capital Gain



When you sell your property that is owned by you for more than three years, any gain arising from such sale will be considered as long term capital gain. Long term capital gain is calculated as the difference between net sales consideration and indexed cost of property.


* Current Long Term Capital Gains tax rate is 20%.

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Q:

A cappella refers to

A) Literature B) Music
C) Arts D) War
 
Answer & Explanation Answer: B) Music

Explanation:
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Filed Under: General Science
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Q:

Which file format can be added to a powerpoint show?

A) .Gif B) .Wav
C) .Jpg D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

Callous is the opposite of

A) emotionally hardened B) insensitive
C) sympathetic D) Unkind
 
Answer & Explanation Answer: C) sympathetic

Explanation:

A callous person is insensitive or emotionally hardened.

 

Hence, Callous is the opposite of Sympathetic, kind hearted, sensitive, nice,...

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Q:

The main result of aerobic respiration is the

A) production of lactic acid as an end product B) production of ATP from the breakdown of glucose
C) conversion of radiant energy into chemical energy D) storage of energy in a polysaccharide
 
Answer & Explanation Answer: B) production of ATP from the breakdown of glucose

Explanation:

The three steps within the aerobic respiration process are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Photosynthesis builds glucose, and what was built in photosynthesis is broken down during aerobic respiration.

 

Hence, production of ATP from the breakdown of glucose is the main result of aerobic respiration.

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Q:

India's tallest National flag from the average city elevation has recently installed in which city?

A) Guwahati B) Bangaluru
C) Mumbai D) Hyderabad
 
Answer & Explanation Answer: A) Guwahati

Explanation:
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