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Q:

Who was the first Indian batsman to have achieved 300 runs in an innings in tests

A) Sachin Tendulkar B) Sourav Ganguly
C) Bishen Singh Bedi D) Virender Sehwag
 
Answer & Explanation Answer: D) Virender Sehwag

Explanation:
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Q:

What is one benefit of My Client Center?

Answer

A dashboard that provides summaries of different metrics for all of your clients’ accounts.

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Subject: Google Certification

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Q:

With which set of following countries has Arunachal Pradesh common border

A) Bhutan,Bangladesh & China B) Myanmar, Bagladesh & china
C) Bhutan, China & Myanmar D) Bhutan, Bangladesh & Myanmar
 
Answer & Explanation Answer: C) Bhutan, China & Myanmar

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Filed Under: Indian Geography

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Q:

Which of the following is a radioactive element

A) Sulphur B) Polonium
C) Tellurium D) Selenium
 
Answer & Explanation Answer: B) Polonium

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Filed Under: Chemistry

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Q:

Boost and Crocin brands are owned by which company?

A) GalaxoSmithKline B) Pfizer
C) Henz D) ParasPharma
 
Answer & Explanation Answer: A) GalaxoSmithKline

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Filed Under: Business Awareness

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Q:

National Income based on the 

A) total revenue of the state B) production of goods and services
C) net profit earned and expenditure made by the state D) the sum of all fractions of income
 
Answer & Explanation Answer: B) production of goods and services

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Q:

What is the gram formula mass of Li2SO4?

A) 101.2487 B) 109.9446
C) 111.2687 D) 106.5871
 
Answer & Explanation Answer: B) 109.9446

Explanation:

The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound.

 

Given compound is Lithium Sulphate - Li2SO4

Elemental calculation ::

Li  -  Lithium   -   6.941    -     2   -   13.88200 %
S  -  Sulfur     -    32.065   -    1   -   32.065 %
O  -  Oxygen   -   15.9994  -    4   -   63.9976 %

Now, total = 12.6264 + 29.1647 + 58.2090 = 109.9446 

 

Hence, the gram formula mass of Li2SO4 = 109.9446.

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Q:

Which compound contains both ionic and covalent bonds?

A) NaNO3 B) CaSO4
C) NH4Cl D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Here all the given compounds have both ionic and covalent bonds.

 

NaNO3 - In Sodium nitrate, Nitrate is covalently bonded as nitrogen is bonded with 3 oxygen atoms. And this nitrate is ionically bonded with sodium.

 

CaSO4 - In Calcium sulphate, sulphate is covalently bonded as sulphur is bonded with 4 oxygen atoms. And this sulphate is ionically bonded with calcium.

 

NH4Cl - In Ammonium chloride, ammonium is covalently bonded as nitrogen is bonded with 4 hydrogen atoms. And this ammonium is ionically bonded with chlorine.

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Filed Under: Chemistry
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