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Chemistry

Answer: B

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42.

Which of the following phenomenon is considered responsible for Global Warming?

Answer: A

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43.

Electromagnetic radiation with maximum wavelength is

Answer: B

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44.

Who is regarded as father of modern chemistry ?

Answer: B

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Answer: C

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46.

Acute diabets patients smell of

Answer: A

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47.

The most malleable metal is

Answer: D

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48.

The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called

Answer: C

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Answer: A

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50.

The purest form of iron is

Answer: A

Wrought Iron is the purest form of iron. It contains 0.12 to 0.25% carbon and so it is the purest form of iron.

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