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Q:

Atoms have no electric charge because they

A) have same number of electrons and neutrons B) have same number of electrons and protons
C) have same number of protons and neutrons D) have same number of protons, electrons and neutrons
 
Answer & Explanation Answer: B) have same number of electrons and protons

Explanation:

Atoms are composed of three main particles called electrons, protons and neutrons. We know that, the electrons are negatively charged particles whereas protons are positively charged and neutrons have no charge.

 

Hence, as the number of electrons and protons are equal and they are oppositely charged, the atom will have no charge as their charges cancel each other.

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Q:

Hub works on which layer?

A) Network layer B) Physical layer
C) Data link layer D) All of the above
 
Answer & Explanation Answer: B) Physical layer

Explanation:

Hub works on layer 1 i.e, physical layer.

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Q:

ISRO got approval for SSLV. It's stands for

A) Small Satellite Launch Vehicle B) Small Scale Limited Vehicles
C) Secondary Scaling Ltd Vehicles D) None of the above
 
Answer & Explanation Answer: A) Small Satellite Launch Vehicle

Explanation:
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Q:

When a chemical bond is broken energy is

A) transferred B) released
C) used D) None of the above
 
Answer & Explanation Answer: C) used

Explanation:

Bond breaking is an endothermic process.

Hence, bond breakage needs an amount of energy and uses some energy based on the strength of the bond to break the bond.

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Q:

Which best describes the difference between stocks and bonds?

A) stocks allow investors to own a portion of the company; bonds are loans to the company B) stocks are more reliable investment;bonds tend to be more volatile
C) stocks allow investors to share in profits;bonds make investors responsible for company debts D) stocks pay interest to investors throughout the year; bonds only pay interest at fixed times during the year
 
Answer & Explanation Answer: B) stocks are more reliable investment;bonds tend to be more volatile

Explanation:
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Q:

Which of the following equals one atomic mass unit?

A) one-twelfth the mass of one carbon-12 atom B) the mass of one electron
C) one-sixth the mass of one helium-4 atom D) the mass of one carbon-12 atom
 
Answer & Explanation Answer: A) one-twelfth the mass of one carbon-12 atom

Explanation:

One atomic mass unit (AMU) is equal to the one-twelfth the mass of one carbon-12 atom.

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Q:

Which country recently unveiled the world's first underground hotel?

A) Japan B) Dubai
C) China D) Malaysia
 
Answer & Explanation Answer: C) China

Explanation:

China recently unveiled the world's first underground hotel.

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Q:

What is the Budgetary allocation to the Pradhan Mantri Gram Sadak Yojana in 2019?

A) Rs 25,000 Crores B) Rs 19,000 Crores
C) Rs 15, 000 Crores D) Rs 28, 000 Crores
 
Answer & Explanation Answer: B) Rs 19,000 Crores

Explanation:

In 2019, the Budgetary allocation to the Pradhan Mantri Gram Sadak Yojana was Rs 19,000 Crores.

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