If nucleon number of potassium is 39, number of neutrons will be _______...? Mcqs

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If nucleon number of potassium is 39, number of neutrons will be _______...?

(A) 39
(B) 19

(C) 20
(D) 29

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Which instrument is used for viewing the sun...?

(A) Stroboscope
(B) Heliograph

(C) Solograph
(D) None of these

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The deficiency of vitamin E causes _______ ...?

(A) Weak immune system
(B) Weak bones

(C) Lack of appetite
(D) Sterility

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The diagnosis of anthrax in cattle may be made by__________...?

(A) Spore staining
(B) Quellung reaction.

(C) Mcyfaydean reaction
(D) None of the above

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If the green leaves are placed under red light, their color will become________...?

(A) Green
(B) Black

(C) Red
(D) Blue

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When oil and gas resources are burnt they kill many forests and lakes by ________________ ...?

(A) deforestation
(B) water pollution

(C) acid rain
(D) forest fire

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Lactometer is a type of Hydrometer which is used to measure the specific gravity of _________...?

(A) Honey
(B) Water

(C) Milk
(D) olive oil

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Diamond is an allotropic form of_______...?

(A) Carbon
(B) Hydrogen

(C) Nitrogen
(D) Silicon

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sea horse is a __...?

(A) Fish
(B) Horse

(C) Crocodile
(D) None of these

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The spray bottles used as window or household cleaner or perfume spray works on: __________...?

(A) Capillary action
(B) Bernoulli’s Principle

(C) Pascal’s Law
(D) Stoke’s Law

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