Exams


Q:

The reactivity of an atom arises from

A) the existence of unpaired electrons in the valence shell B) the potential energy of the valence shell
C) the average distance of the outermost electron shell from the nucleus D) the sum of the potential energies of all the electron shells
 
Answer & Explanation Answer: A) the existence of unpaired electrons in the valence shell

Explanation:

The reactivity of an atom arises from the existence of unpaired electrons in the valence shell.

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Filed Under: Chemistry
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Q:

1/8 as a decimal?

A) 0.125 B) 0.225
C) 0.325 D) 0.425
 
Answer & Explanation Answer: A) 0.125

Explanation:

1/8 to convert into decimal,

Find an equivalent fraction with a denominator of a power of 10.

In this case, we will use 1000.

18 x 125125 = 1251000

This can now be written as a decimal with 3 decimal places (because we have thousandths.

i.e, 0.125

 

Hence, 18 as a decimal = 0.125

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Q:

For intra-State movement, the e-way bill by GST council will be rolled out in a phased manner beginning April 15 and will cover all the States by

A) May 1 B) June 1
C) May 31 D) July 31
 
Answer & Explanation Answer: A) May 1

Explanation:

For intra-State movement, the e-way bill will be rolled out in a phased manner beginning April

15 and will cover all the States by June 1. Businesses will continue to file summary sales return

GSTR-3B until June as the GST (Goods and Services Tax) Council has extended the present

system of return-filing by three months. Electronic way or e-way bill for movement of goods

between States would be implemented from April 1.

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Filed Under: General Awareness
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Q:

What does Earned Income Tax Credit (EITC) means ?

Answer

The United States Federal Earned Income Tax Credit (EITC) is a refundable tax credit, that helps low and medium - income individuals and couples, primarily for those who have qualifying children. 

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Q:

Acceptable noise level for human ear

A) > 85 db B) = 85 db
C) < 85 db D) None of the above
 
Answer & Explanation Answer: C) < 85 db

Explanation:

Sound intensity or level is measured by a unit called a decibel. An 85 decibel noise level is not a safe standard for the public.

 

Hence, Acceptable noise level for human ear is less than 85 db.

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Q:

Which gas is used for the preparation of Soda water?

A) Carbon Dioxide B) Oxygen
C) Hydrogen D) Ammonia
 
Answer & Explanation Answer: A) Carbon Dioxide

Explanation:
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Q:

Sabrina travelled 8 km/hr on foot and 13 km/hr on cycle. She travelled a distance of 84 km in 8 hours. Forhow many hours did she cycle?

A) 4 B) 5
C) 3 D) 2
 
Answer & Explanation Answer: A) 4

Explanation:
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Q:

Which one of the following pairs of animals is warm blooded?

A) Crocodile and Ostrich B) Hagfish and Dogfish
C) Tortoise and Ostrich D) Peacock and Camel
 
Answer & Explanation Answer: D) Peacock and Camel

Explanation:

Warm-blooded creatures, like mammals and birds, try to keep the inside of their bodies at a constant temperature. They do this by generating their own heat when they are in a cooler environment, and by cooling themselves when they are in a hotter environment. To generate heat, warm-blooded animals convert the food that they eat into energy. Peacock and camel are warm blooded animals.

 

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Filed Under: Animals and Birds
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