Atoms that gain electron will become negatively charged ion and they are known as...? Mcqs

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Atoms that gain electron will become negatively charged ion and they are known as...?

(A) Ion
(B) Cation

(C) Isotope
(D) Anion

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In plants, water and minerals are transported from roots to the leaves by ____...?

(A) Phloem
(B) Xylem

(C) Stomata
(D) Cambium

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The Boolean expression of an OR gate is ______...?

(A) A . B
(B) A + B

(C) A x B
(D) None of these

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In a railway track, two rails are joined end to end with a gap tin between them because...?

(A) Steel can be saved
(B) Accidents due to contraction in winter can be avoided

(C) Air gaps are necessary for bearing the weight of running train
(D) Accidents due to expansion in summer can be avoided

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The turn ratios of a transformer is 10. It means ______...?

(A) Is = 10 Ip
(B) Np - 10Ns

(C) Ns = 10 Np
(D) Vs = 10 Vp

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Deficiency diseases are caused due to the deficiency of___________...?

(A) Proteins
(B) Vitamins

(C) Carbohydrates
(D) Fats

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Which of the following is an example of a solution...?

(A) Sand and water
(B) Oil and water

(C) Sugar and water
(D) Salt and air

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Animal and Plant bodies contain ________ of water....?

(A) 75%
(B) 72%

(C) 70%
(D) 73%

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In which of the following is/are chlorophyll is present...?

(A) Algae
(B) Bacteria

(C) Animals
(D) Plants

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Deficiency of vitamin “D” in human body can causes____...?

(A) Gum disease
(B) Skin problem

(C) osteoporosis and fractures
(D) Eye-sighted weakness

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