Which one of the following is strong acid...? Mcqs

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Which one of the following is strong acid...?

(A) HF
(B) HCl

(C) HBr
(D) HI

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The element common to all acids is:__________...?

(A) Hydrogen
(B) Carbon

(C) Sulphur
(D) Oxygen

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One Astronomical unit is equal to how much Km in whole numbers...?

(A) 160 million km
(B) 140 million km

(C) 150 million km
(D) 130 million km

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Which one is longitudinal wave...?

(A) sound waves
(B) light waves

(C) water waves
(D) electromagnetic waves

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Techniques for manipulation of gene to achieve desirable characters are called...?

(A) Biotechnology
(B) Biochemistry

(C) Genomics
(D) Gene Therapy

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The reaction between Acid and basin to form...?

(A) Salt and water
(B) Acid solution

(C) base solution
(D) Water

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Which of the following strongly supports the endosymbiont hypothesis of eukaryotic evolution...?

(A) Mitochondria and chloroplasts both have DNA
(B) Mitochondria is free living

(C) Both A and B
(D) None of the above

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In plants, the cell wall is composed mainly of strong fibers of ____...?

(A) Cellulose
(B) Starch

(C) Proteins
(D) Lipids

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A _______ is an object with at least one slanting side ending in a sharp edge, which cuts material apart....?

(A) Pulley
(B) Inclined Plane

(C) Lever
(D) Wedge

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How does smoking cigarettes impact the red blood cells...?

(A) Decreases their ability to congeal
(B) Decreases their ability to carry oxygen

(C) Decreases their ability to reach their typical life duration
(D) Decreases their ability to cleanse wounds

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