The position of an element in the Periodic Table is determined by its __________ number...? Mcqs

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The position of an element in the Periodic Table is determined by its __________ number...?

(A) Electron
(B) Proton

(C) Neutron
(D) None of these

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Humming bird belongs to a category called ...?

(A) Ectotherm
(B) Endotherm

(C) Exotherm
(D) Heterotherm.

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Deficiency of dietary protein, causes an imbalance in the gastro-intestinal system...?

(A) Marasmus
(B) Edema

(C) Diarrhea
(D) Kwashiorkor

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Deuterium differs from Hydrogen in having:...?

(A) Different atomic number but same atomic weight
(B) Different atomic number and different atomic weight

(C) Same atomic number and different atomic weight
(D) None

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Which isotope is used to investigate carbon uptake and biochemical pathways in plants...?

(A) Phosphorus - 32
(B) Carbon - 14

(C) Lead - 210
(D) Nitrogen - 15

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Selective reabsorption in nephron takes place at ______...?

(A) Glomerulus
(B) Malpighian body

(C) Convulated tubules
(D) Loop of Henle's

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Oil of vitriol is_________...?

(A) Nitric acid
(B) Hydrochloric acid

(C) Phosphoric acid
(D) Sulfuric acid

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The carbohydrates which contain the aldehyde group are called...?

(A) Saccharides
(B) Ketoses

(C) Pentoses
(D) Aldoses

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Which of the following type of mirrors can form an image larger than the object...?

(A) Convex
(B) Plane

(C) Concave
(D) None of these

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Why does cytosine not form a bond with adenine...?

(A) Cytosine is unable to form hydrogen bonds with adenine.
(B) Adenine and cytosine have incompatible hydrogen bond donors and acceptors.

(C) Cytosine only pairs with thymine due to their complementary structures.
(D) Adenine is a pyrimidine and cannot bond with cytosine.

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