In modern periodic table, how many periods are there...? Mcqs

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In modern periodic table, how many periods are there...?

(A) 7
(B) 8

(C) 9
(D) 6

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If the material recovers the original dimensions, when an external force is removed, this deformation is known as ______ deformation....?

(A) Inelastic
(B) Permanent

(C) Elastic
(D) Irreversible

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What is chemical symbol for Tungsten...?

(A) Z
(B) T

(C) Tn
(D) W

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Omnivores that eat only...?

(A) Only plants
(B) Only animals

(C) Both A and B
(D) None

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The phenomenon of dispersion light can be observed experimentally by passing a white light through ____...?

(A) Lens
(B) Prism

(C) Mirror
(D) Grating

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Friction can be reduced by changing from _________...?

(A) Rolling to sliding
(B) Sliding to rolling

(C) Dynamic to static
(D) Potential energy to kinetic energy

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What amount of fats give energy of 9.3 K Calories...?

(A) 0.5 gram
(B) 1.0 gram

(C) 2.0 gram
(D) 4.1 gram

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The inner most part of the earth is__________...?

(A) Crust
(B) Mental

(C) Core
(D) None of these

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Tocopherol is the chemical name of which vitamin...?

(A) vitamin C
(B) vitamin D

(C) vitamin A
(D) vitamin E

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In what year did Galileo first use an optical telescope to study the moon...?

(A) 1492
(B) 1609

(C) 1212
(D) 1743

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