Questions

Q:

Which reaction occurs spontaneously?

A) Cl2(g) + 2NaF(aq)--> F2(g) + 2NaCl(aq) B) I2(s) + 2NaF(aq)--> F2(g) + 2NaI(aq)
C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq) D) I2(s) + 2NaBr(aq)--> Br2(l) + 2NaI(aq)
 
Answer & Explanation Answer: C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq)

Explanation:

In this chemical reaction chlorine change oxidation number from 0 to -1 (reduction) and bromine change oxidation number from -1 to 0 (oxidation).

Chlorine is stronger oxidation reagent than bromine.

In VIIA or group 17 (halogen elements) there are six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and tennessin(Ts).

They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the octet rule.  

Going down in the group, element are weaker oxidazing reagent and less reactive.

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Q:

What is the India’s GDP growth predict for Financial Year 2017-18, according to the Economic Survey of India (ESI) 2016-17 ?

A) 6.25 % to 7.5% B) 6.55 % to 7.25%
C) 6.55 % to 7.5% D) 6.75 % to 7.5%
 
Answer & Explanation Answer: D) 6.75 % to 7.5%

Explanation:

The Economic Survey for 2016-17, which is recently tabled by Finance Minister Arun Jaitley in Parliament, has expected India’s GDP growth estimation to be in 6.75 % to 7.5% for Financial Year 2017-18.

 

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Q:

One method by which the components of air can be seperated is 

A) shaking with caustic soda solution B) shaking with water
C) fractional distillation of liquid air D) passing air over heated magnesium
 
Answer & Explanation Answer: C) fractional distillation of liquid air

Explanation:

The two main components of air are nitrogen and oxygen. They are seperated by the fractional distillation of liquid air. Liquefied air contains liquid nitrogen and liquid oxygen. Liquid nitrogen with the lower boiling point more readily evaporates than the less volatile liquid oxygen. 

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Q:

Yeast used in making bread is a

A) Fungus B) Bacteria
C) Seed D) Plant
 
Answer & Explanation Answer: A) Fungus

Explanation:

Yeast used in making bread is a Fungus.

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Q:

Where are saved files stored in computer ?

A) Hard disk B) Cache
C) RAM D) Any of above
 
Answer & Explanation Answer: A) Hard disk

Explanation:

Most operating systems store files on a hard disk.

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Q:

The God who is the most prominent in ' Rigaveda 'is

A) Indra B) Agni
C) Pasupati D) Vishnu
 
Answer & Explanation Answer: A) Indra

Explanation:
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Q:

Parasec is ythe unit of

A) distance B) time
C) intensity of light D) magnetic line
 
Answer & Explanation Answer: A) distance

Explanation:
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Q:

The main function of a school board is to

A) manage public schools in accordance with state and federal law. B) raise revenue for public schools through local taxes and fees.
C) propose and legislate state laws that affect the public schools. D) serve as a school’s principals, teachers, and administrators.
 
Answer & Explanation Answer: A) manage public schools in accordance with state and federal law.

Explanation:

The main function of a school board is to manage public schools in accordance with state and federal law.


The functions of the school board of a public school are:

• to establish strategic direction and priorities for the school.

• to monitor and review school performance and to report on it to the Director-General, parents of students at the school and staff.

• to develop, maintain and review curriculum for the school.

• to develop and review education policies at the school.

• to establish budgetary policies for the school and approve the school budget.

• to establish policies for the efficient and effective use of school assets and the management of financial risk.

• to develop relationships between the school and the community and between the school and community organisations.

• to make recommendations to the Director-General on issue affecting the school and to give effect to the Director-General’s directions.

• to encourage parent participation in their children’s learning; and

• to exercise any other function given to the board under this Act or any other
Territory law.

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