Which of the following is helpful for removal of permanent hardness...? Mcqs

Latest MCQs

Which of the following is helpful for removal of permanent hardness...?

(A) Na2CO3
(B) Ca(OH)2

(C) CaCO2
(D) Na2SO4

Latest MCQs

What method of energy transfer requires no medium for transfer...?

(A) Radiation
(B) Convection

(C) Conduction
(D) A and B both

Latest MCQs

Which one of the following is not a plant product...?

(A) Caffeine
(B) Nicotine

(C) Piperine
(D) Saccharin

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The respiratory surface of human is ______...?

(A) Nostril
(B) Bronchiole

(C) Alveoli
(D) Trachea

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The sample may be solid, liquid, gas or a _______ in qualitative analysis....?

(A) Mixture
(B) Compound

(C) Differentiate
(D) Substance

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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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Which element is used as moderator in nuclear reactor...?

(A) Light water
(B) Dense water

(C) Fresh water
(D) Heavy water

Latest MCQs

Which one of the following is not a disadvantage of friction...?

(A) Energy loss
(B) Fasteners

(C) Wear and Tear
(D) Speed limit

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Botany is also called _______ ...?

(A) Phytology
(B) Phycology

(C) Pedology
(D) Plantophyta

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Fertilizers are substances containing chemical elements such as manure or mixture of ______...?

(A) Lipids
(B) Carbohydrates

(C) Nitrates
(D) Proteins

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