A powder contains 100mg of a radioactive material that emits α-particles. (See in detail)...? Mcqs

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A powder contains 100mg of a radioactive material that emits α-particles. (See in detail)...?

(A) 0mg
(B) 25mg

(C) 50mg
(D) 75mg

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There is no connection of supernova explosion with___________...?

(A) Cosmic rays
(B) Pulsars

(C) The formation of heavy elements
(D) Quasars

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Edward Genner discovered ‘vaccine’ in___________...?

(A) 1796
(B) 1978

(C) 1686
(D) 1933

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Blood which heart pumps to lungs is__________...?

(A) deoxygenated blood
(B) lymph fluid

(C) atria blood
(D) oxygenated blood

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The presence of ice in which region of the moon has been conclusively established...?

(A) Southern pole region
(B) Northern pole region

(C) Equator
(D) All of the above

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The major source of quick energy for our body is...?

(A) Carbohydrates
(B) Mineral

(C) Vitamin
(D) Protein

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The molar mass of H2SO4 is ______...?

(A) 98 a.m.u
(B) 9.8 gm

(C) 98 gm
(D) 9.8 a.m.u

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In an acidic medium, methyl orange is orange (red) and in a basic medium, it is...?

(A) Red
(B) Yellow

(C) Pink
(D) Blue

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The blurred image is formed in front of eyes due to ______...?

(A) Light focused in front of the retina
(B) Light focused behind the retina

(C) Light focused at a point on retina
(D) Light focused at a point beyond retina

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In a very low temperature which from the following will freeze at last...?

(A) River water
(B) Canal water

(C) Sea water
(D) Water in a lake

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