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Q:

The Largest country of the World by Geographical Area is

A) China B) United States of America
C) Russia D) Australia
 
Answer & Explanation Answer: C) Russia

Explanation:

Russia is the Largest country of the World by Geographical Area.

 

Top 10 largest countries of the World :

1. Russia

2. Canada

3. United States of America

4. China

5. Brazil

6. Australia

7. India

8. Argentina

9. Kazakhstan

10. Algeria

 

When all 10 of the world's largest countries are taken together, they total 49% of the earth's entire 149 million square kilometres of land.

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Filed Under: General Awareness
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Q:

Who has been appointed as the Election Commissioner of India  ?

A) S. Y. Quraishi B) Sunil Arora
C) H. S. Brahma D) Nasim Zaidi
 
Answer & Explanation Answer: B) Sunil Arora

Explanation:
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Q:

The cover of a solar coker is made of glass because 

A) it absorbs sun's rays B) it reflects sun's rays
C) it retains the heat inside by the green house effect D) it rediates heat better than metals
 
Answer & Explanation Answer: C) it retains the heat inside by the green house effect

Explanation:

As the inside of the cooker is painted black, heat absorption is more producing heat waves of longer wavelength which cannot escape through glass and hence are trapped inside. Thus the food is cooked.

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Filed Under: Physics

2 3519
Q:

Who gave the slogan 'Back to the Vedas (Vedo ki aur lauto)'?

A) Guru Nanank Dev Ji B) Dayanand Saraswati
C) Swami Vivekananda D) Raja Ram Mohan Roy
 
Answer & Explanation Answer: B) Dayanand Saraswati

Explanation:
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Filed Under: Indian History
Exam Prep: Bank Exams

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Q:

In which year was the first solid state integrated circuit demonstrated?

A) 1970s B) 1960s
C) 1950s D) 1980s
 
Answer & Explanation Answer: C) 1950s

Explanation:
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Filed Under: Inventions

3 3516
Q:

Which river of Rajasthan is known as Van Ki Asha?

A) Chambal B) Mahi
C) Banas D) Luni
 
Answer & Explanation Answer: C) Banas

Explanation:

Van Ki Asha means Hope of forest. Banas river of Rajasthan is known as Van Ki Asha. It passes through Udaipur originating from aravallis. It is the longest river with length 512 kms in Rajasthan having full flow.

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Filed Under: Indian Geography
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3 3516
Q:

In which of the following kind of organisms is the phenomenon found where in the female kills the male after copulation __________

A) Drgonfly B) Honey bee
C) Spider D) Pit viper
 
Answer & Explanation Answer: C) Spider

Explanation:
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Filed Under: Biology

8 3515
Q:

What is the gram formula mass of K2CO3?

A) 147 B) 138
C) 129 D) 116
 
Answer & Explanation Answer: B) 138

Explanation:

The gram formula mass of a compound is nothing but the molar mass.

The molar mass of K2CO3 (Potassium Carbonate) is given by

Atomic weights of individual elements are

 

K (Potassium) = 39 g

C (Carbon) = 12 g

O (Oxygen) = 16 g

 

Hence, that of K2CO3 = 39(2) + 12 + 16(3)

= 78 + 12 + 48

= 138.

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Filed Under: Chemistry
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