Questions

Q:

Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to

A) dehydration B) oxidation
C) reduction D) dehydrogenation
 
Answer & Explanation Answer: B) oxidation

Explanation:

Saw dust contains carbon which is oxidised to carbon  dioxide by concentrated nitric acid;

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Filed Under: Chemistry

30 10112
Q:

Which of the statements given below are correct?

1. The author of the novel 'Fellside' is Victor LaValle.
2. The author of the novel 'A Head Full of Ghosts' is M.R Carey.
3. The author of the novel 'Brave New World' is Aldous Huxley.

A) 1 and 2 B) 2 and 3
C) 1 and 3 D) 1, 2 and 3
 
Answer & Explanation Answer: A) 1 and 2

Explanation:
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Filed Under: Books and Authors
Exam Prep: Bank Exams

0 10111
Q:

Answer the Following Puzzle.

Number Puzzles Questions and Answers

A) 11 B) 22
C) 33 D) 32
 
Answer & Explanation Answer: B) 22

Explanation:

Add together values in corresponding positions of the top two crosses, and put the result in the lower left cross.

Calculate the difference between values in corresponding positions of the top two crosses, and put the result in the lower right cross.

Finally add together the values in corresponding positions of the lower two crosses to give the values in the central cross

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Filed Under: Number Puzzles

83 10098
Q:

Mica is available abundantly in

A) Andhra Pradesh, Jharkand, Bihar B) Bihar, Gujarat, Telangana
C) Andhra Pradesh, Karnataka, Jharkand D) Telangana, Andhra Pradesh, Bihar
 
Answer & Explanation Answer: A) Andhra Pradesh, Jharkand, Bihar

Explanation:

According to 2005 - 2006 census - Jharkand

According to 2011 - 2012 census - Andhra Pradesh

 

are the highest producers of Mica in India.

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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank PO

33 10098
Q:

Dr. V.Kurien has distinguished himself in which of the following areas

A) Poultry farms B) Economic Reforms
C) Dairy Development D) Atomic Energy
 
Answer & Explanation Answer: C) Dairy Development

Explanation:
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Filed Under: Famous Personalities

14 10092
Q:

What is the conjugate base of H2O?

A) NH3+ B) OH-
C) H2O D) All the above
 
Answer & Explanation Answer: B) OH-

Explanation:

A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it.

On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid.

Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic.

Represented as the following chemical reaction:

Acid + Base ⇌ Conjugate Base + Conjugate Acid

 

The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.

 

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 10088
Q:

Bootstrapping is also known as

A) hot boot B) cold-hot boot
C) cold boot D) quick boot
 
Answer & Explanation Answer: C) cold boot

Explanation:

Bootstrapping is a term used in business to refer to the process of using only existing resources, such as personal savings, personal computing equipment, and garage space, to start and grow a company.

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Filed Under: Computer
Exam Prep: Bank Exams

14 10088
Q:

Output devices make it possible to

A) View and print a data B) Scan a data
C) Input a data D) Sending a data
 
Answer & Explanation Answer: A) View and print a data

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

20 10083