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Q:

Who will be India's Republic Day chief guest in 2019?

A) Donald Trump	B) Cyril Ramaphosa
C) Theresa May	D) Scott Morrison

Answer & Explanation Answer: B) Cyril Ramaphosa

Explanation:

South Africa's President Cyril Ramaphosa will be India's Republic Day chief guest in 2019.

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Filed Under: General Awareness
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Q:

what is the chemical name of the compound

${Cu}_{2} {CO}_{3}$

A) copper (ii) carbonate	B) copper (iii) carbonate
C) copper (i) carbonate	D) copper carbonate

Answer & Explanation Answer: C) copper (i) carbonate

Explanation:

The chemical name of the compound

${Cu}_{2} {CO}_{3 is}$ Copper (i) carbonate and is also called as cuprous carbonate.

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Q:

Find the next number in the given number series?

8, 11, 19, 23, 32, ?

A) 37	B) 39
C) 47	D) 49

Answer & Explanation Answer: A) 37

Explanation:

The given number series is 8, 11, 19, 23, 32, ?

It follows a pattern that

8 + 11 = 19

11 + 12 = 23

19 + 13 = 32

23 + 14 = 37

32 + 15 = 47

....

Hence, the next number in the given series = 37.

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Q:

$4 \frac{4}{5} of 229.79 = ? of 2398.51$

A) 23/50	B) 36/49
C) 33/41	D) 29/47

Answer & Explanation Answer: A) 23/50

Explanation:

Given

$4 \frac{4}{5} of 229.79 = ? of 2398.51$

$\frac{24}{5} x 230 = ? x 2400 24 x 46 = ? x 2400 ? = 46 / 100 ? = \frac{23}{50}$

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Q:

Which is a pair of allotropes?

A) carbon-16 and carbon-12	B) diamond and graphite
C) carbon dioxide and graphite	D) diamond and carbon dioxide

Answer & Explanation Answer: B) diamond and graphite

Explanation:

Allotropes are the different physical forms of an element. Here in the given options, diamond and graphite are the pair of allotropes of carbon.

Some more examples are Molecular oxygen and ozone are pair of allotropes, Black and red phosphorous are also pairs of allotropes.

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Q:

What is the age of Teja?

A: Four years ago, Raju was as old as Teja is at present.

B: Sita’s present age is two times of Raju’s present age.

C: The average age of Teja and Sita is 19 years.

A) Any two statements are sufficient to give answer	B) Only C is sufficient
C) All of three statements are necessary to give answer	D) Even using all the three statements answer cannot be found

Answer & Explanation Answer: C) All of three statements are necessary to give answer

Explanation:

From the given statements A, B & C

Let the present age of Teja = P

Raju present age = P + 4

Sita's present age = 2(P + 4)

Average of ages of Sita & Teja = 19

=> (2P + 8 + P)/2 = 19

= 3P + 8 = 38

=> P = 30/3 = 10

Hence, the present age of Teja = P = 10 yrs.

Therefore, by using all the three statements A, B & C we can find the age of Teja.

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Q:

Find the odd man out of the following number series?

49, 81, 121, 169, 196, 225

A) 81	B) 121
C) 196	D) 225

Answer & Explanation Answer: C) 196

Explanation:

Here in the given number series 49, 81, 121, 169, 196, 225

Except 196 all others are squares of odd numbers, whereas 196 is a square of 14 which is an even number.

Hence, the odd man in the given number series is 196.

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Q:

What is the name for the compound $P_{4} O_{10}$ ?

A) Phospholipid	B) Phosphoric acid
C) Phosphorus pentoxide	D) Phosphorus decoxide

Answer & Explanation Answer: C) Phosphorus pentoxide

Explanation:

The compound with the molecular formula $P_{4} O_{10}$ is called Phosphorus pentoxide or tetraphosphorous decoxide. It is an anhydride of the Phosphoric acid.

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