Q:

Which sample of matter is a mixture?

A) KBr (S)	B) NaCl (L)
C) K (S)	D) NaCl (Aq)

Answer & Explanation Answer: D) NaCl (Aq)

Explanation:

Mixtures are combination of two or more substances physically which can be separated in to the original.

Matter can be breakdown into two categories.

1) Pure substances

2) Mixtures

Here in the given options, options A, B, C are pure substances as they are indicated as S & L in brackets. Option D) is an aqueous solution, that can be dissolved in water.

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Q:

Only genius can solve this puzzle?

genius_maths_puzzle1564054544.jpg image

A) 36	B) 40
C) 48	D) 60

Answer & Explanation Answer: C) 48

Explanation:

In the given puzzle the logic is

2 x 1 + 1 = 2 + 1 = 3

3 x 2 + 2 = 6 + 2 = 8

4 x 3 + 3 = 12 + 3 = 15

5 x 4 + 4 = 20 + 4 = 24

6 x 5 + 5 = 30 + 5 = 35

Similarly,

7 x 6 + 6 = 42 + 6 = 48

7 = 48.

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Q:

Match the following items of column A with column B.

A) I – 3, II – 1, III – 2	B) I – 2, II – 1, III – 3
C) I – 2, II – 3, III – 1	D) I – 1, II – 2, III – 3

Answer & Explanation Answer: B) I – 2, II – 1, III – 3

Explanation:

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Q:

What kind of tree can you carry in your hand?

Answer

Palm tree.

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Q:

What percentage of the total area of lithosphere has the expansion of mountains?

A) around 26-27%	B) around 30-31%
C) around 33-34%	D) around 41-42%

Answer & Explanation Answer: A) around 26-27%

Explanation:

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Q:

Who is the Indian Classical dancer credited with the first female dancer to learn Chhau form ?

Answer

Sonal Mansingh

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Q:

The prime meridian passes through

A) Paris	B) Greenwich
C) New York	D) Delhi

Answer & Explanation Answer: B) Greenwich

Explanation:

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Filed Under: World Geography

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Q:

Generally covalently bonded molecules ______.

I. have high boiling and melting point as compare to ionically bonded molecules

II. poor conductors of electricity

III. have weak intermolecular force

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

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