Q:

What is the pH value of human blood?

A) 8.3	B) 6.8
C) 7.4	D) 6

Answer & Explanation Answer: C) 7.4

Explanation:

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Q:

What is the other name of sodium carbonate?

A) Baking soda	B) Washing soda
C) Baking powder	D) No option is correct

Answer & Explanation Answer: B) Washing soda

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Q:

The credit for classifying the elements on the basis of their atomic masses goes to

A) John Dalton	B) John Alexander Reina Newlands
C) Dmitri Mendeleev	D) Johann Wolfgang Dobereiner

Answer & Explanation Answer: C) Dmitri Mendeleev

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Q:

What was the element used in traditional thermometers which is highly toxic in nature?

A) Carbon	B) Mercury
C) Arsenic	D) Cadmium

Answer & Explanation Answer: B) Mercury

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Q:

______ is a thyroid hormone which controls the balance of calcium in the body.

A) Calcitonin	B) Thyroxine
C) Calmodulin	D) all of these

Answer & Explanation Answer: A) Calcitonin

Explanation:

Calcitonin is 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells of the thyroid, and in many other animals in the ultimopharyngeal body. It acts to reduce blood calcium, opposing the effects of parathyroid hormone.

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Q:

In which of the following the dominant phase is Gametophyte?

A) Bryophyta	B) Pteridophyta
C) Gymnosperms	D) Angiosperms

Answer & Explanation Answer: A) Bryophyta

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Q:

The color of human skin depends upon

A) melanin	B) carotenoids
C) anthocyanins	D) chlorophylls

Answer & Explanation Answer: A) melanin

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Q:

Which cricket player recently became the 6th Indian to take 300 wickets in test cricket?

A) Bhuvanesh Kumar	B) Jasprit Bumrah
C) Ishant Sharma	D) Ravichandran Ashwin

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