Q:

What is the action of dry HCl gas on dry litmus paper?

A) Blue litmus paper turns white	B) Blue or red litmus paper does not change its colour
C) Blue litmus paper turns red	D) Red litmus paper turns blue

Answer & Explanation Answer: B) Blue or red litmus paper does not change its colour

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Q:

The pH value increase from 7 to 14 represents a

A) decrease in H+ ion concentration	B) decrease in OH- ion concentration
C) increase in OH- ion concentration	D) increase in H+ ion concentration

Answer & Explanation Answer: C) increase in OH- ion concentration

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Q:

In the Modern Periodic Table elements present in the same period will have the same

A) atomic weight	B) number of shells
C) atomic number	D) valence electrons

Answer & Explanation Answer: B) number of shells

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Q:

Which of the following metals is found in free state?

A) Sodium	B) Gold
C) Potassium	D) Calcium

Answer & Explanation Answer: B) Gold

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Q:

Which of the following physiological symptoms are signs of stress?

A) Arthritis and carpal tunnel syndrome	B) Dental cavities and bone loss
C) Headaches and elevated blood pressure	D) Hearing and vision loss

Answer & Explanation Answer: C) Headaches and elevated blood pressure

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Q:

____ tissue changes the diameter of a blood vessel.

A) Heart	B) Muscle
C) Epithelial	D) Bone

Answer & Explanation Answer: B) Muscle

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Q:

Which of the following is not correct?

A) Members of Chlorophyceae are commonly called green algae	B) Members of Phaeophyceae are commonly called red algae
C) Members of Rhodophyceae are commonly called red algae	D) Members of Phaeophyceae are commonly called brown algae

Answer & Explanation Answer: B) Members of Phaeophyceae are commonly called red algae

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Q:

Which among the following is true for the Supreme Court of India ?

A) Federal Court	B) Court of Appeal
C) Guardian of the Constitution	D) All of these

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