Ascorbic acid is...? Mcqs

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Ascorbic acid is...?

(i) Vitamin A
(ii) Vitamin C

(iii) Vitamin D
(iv) non of these

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James Chadwick is known for his discovery...?

(i) Proton
(ii) Neutron

(iii) Electron
(iv) None of these

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Cooking gas is mixture of which of the following two gases...?

(i) Methane & Carbon dioxide
(ii) Oxygen & Nitrogen

(iii) Butane & Propane
(iv) Oxygen & Methane

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How many neutrons are in hydrogen...?

(i) 0
(ii) 1

(iii) 2
(iv) 3

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اوزون لیئر کو سب سے ذیادہ نقصان کون سا مادہ کرتا ہے۔۔۔؟

(i) سلفر
(ii) زنگ

(iii) ہائیڈروجن
(iv) کاربن

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Diamond is an allotropic form of:...?

(i) Germanium
(ii) Carbon

(iii) Silicon
(iv) Sulphur

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Which of the following gases is used for refrigeration...?

(i) Chlorine
(ii) Ammonia

(iii) Phosphine
(iv) Carbon Dioxide

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Milk has pH:e:...?

(i) 6.5
(ii) 7.5

(iii) 8.5
(iv) 9.5

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A matter can exist in which of the following forms:...?

(i) Liquid
(ii) Solid

(iii) Gas
(iv) All of these

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The freezing point of water on a centigrade scale is...?

(i) 0°C
(ii) 1°C

(iii) -1°C
(iv) 5°C

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