The ability of the Eye to see in the dark, is due to the production of a purple pigment known as________...? Mcqs

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The ability of the Eye to see in the dark, is due to the production of a purple pigment known as________...?

(A) Carotene
(B) Rhodopsin

(C) Iodopsin
(D) Retinene

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The dominant phase of life cycle in these organism is haploid...?

(A) Mosses
(B) Bacteria

(C) Protozoa
(D) None

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Which substance has a pH value closest to neutral...?

(A) Ammonia
(B) Blood

(C) Milk
(D) Organic juice

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Sensitive layer of the eye is...?

(A) Choriods
(B) Sclerotic

(C) Retina
(D) Cornea

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Which one of the following is the softest...?

(A) sodium
(B) iron

(C) aluminium
(D) lithium

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The melting point of ice at normal atmospheric pressure is ______...?

(A) 0 °C
(B) 0 K

(C) 100 °C
(D) Both 'a' and 'b'

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Who invented the Hot Air Balloon...?

(A) Davy
(B) Montgolfier

(C) Edison
(D) Jarvik

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Rate of evaporation of petrol is greater than that of water at room temperature because:...?

(A) petrol molecules do not have any hydrogen bond
(B) petrol is an organic compound

(C) water molecules have small size
(D) petrol molecules have greater size

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Birth control pills contain synthetic________...?

(A) Sugars
(B) Hormones

(C) Vitamins
(D) Minerals

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Which Planet is also known as Winter Planet...?

(A) Mercury
(B) Earth

(C) Jupiter
(D) Uranus

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