Bank Clerk 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)

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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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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 is in India wins Pierre L'Enfant International Planning Excellence Award 2017 ?

A) Banglore B) Hyderabad
C) Bhubaneshwar D) Delhi
 
Answer & Explanation Answer: C) Bhubaneshwar

Explanation:

The American Planning Association (APA) has announced this year's international excellence award for the Bhubaneswar smart city project.

The award called Pierre L'Enfant International Planning Excellence Award 2017 will be given on May 8 in New York city.

This is the first time in the 50 years history of APA's annual award programme that an Indian city has been recognised for its planning efforts.

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Q:

Select the word with the correct spelling.

A) ultimasy B) partime
C) cabarets D) referes
 
Answer & Explanation Answer: C) cabarets

Explanation:
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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:

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:

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:

Unlike conservation, what does preservation emphasize?

A) Saving natural resources B) Managing natural resoucres
C) Carrying capacity D) Renewing natural resources
 
Answer & Explanation Answer: A) Saving natural resources

Explanation:
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