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

Latest MCQs

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

(A) سلفر
(B) زنگ

(C) ہائیڈروجن
(D) کاربن

Latest MCQs

Soap and detergents remove the dirt from clothes due to...?

(A) Capillary action
(B) Osmosis

(C) Diffusion
(D) Lowering of interfacial tension

Latest MCQs

Ascorbic acid is...?

(A) Vitamin A
(B) Vitamin C

(C) Vitamin D
(D) non of these

Latest MCQs

The reaction between an acid and a base is called neutralization reaction, product of this reaction is ______...?

(A) salt and water
(B) acid solution

(C) base solution
(D) water

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What is most common salt in sea water...?

(A) Calcium barbonate
(B) Potassium Chloride

(C) Sodium Chloride
(D) Magnesium Sulphate

Latest MCQs

Biogas produced as a result of anaerobic decay of organic matter consist primarily of __________ gases...?

(A) N₂ & SO2
(B) NH3 & CO2

(C) O2 & N₂
(D) None of these

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Which Muslim scientist is considered to be the founder of chemistry___...?

(A) Jabir bin Hayan
(B) Al Beroni

(C) Yaqoob Alkandi
(D) None

Latest MCQs

Plants exhale at night time which gas...?

(A) O2
(B) H20

(C) Co1
(D) CO2

Latest MCQs

The acid used in a car battery is:...?

(A) Acetic Acid
(B) Nitric acid

(C) Sulfuric acid
(D) Hydrochloric acid

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The process of emoving water in the form of vapour from theleaves is called:...?

(A) Nutrition
(B) Respiration

(C) Perspiratin
(D) Transpiration

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