Quiz 9- Chemistry-General Science: General Knowledge Question & Answers

81 Q) Which one of the following pollutants contains in water due to modern agricultural practices lead to 'methemoglobinaemia' when combines with our blood haemoglobin?

(a)Bicarbonates

(b)Sulphates

(c) Phosphates

(d)Nitrates

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D

82 Q) "What is the role of positive catalyst in a chemical reaction? "

(a)It increases the rate of reaction

(b)It decreases the rate of reaction

(c)It increases the yield of the products

(d) It provides better purity of the products

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C

83 Q) The pH of fresh groundwater slightly decreases upon exposure to air because

(a) carbon dioxide from air is dissolved in the water

(b) oxygen from air is dissolved in the water

(c) the dissolved carbon dioxide of the groundwater escapes into air

(d) the dissolved oxygen of the groundwater escapes into air

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A

84 Q) "Consider the following statements 

I.Brent Crude is a major trading classification of sweet light crude oil. 

II.Brent Crude is sourced from the North Sea. 

III.Brent Crude contains sulphur. 

Which of the statements given above are correct?."

(a) I, II and III

(b) I and II

(c) I and III

(d) II and III

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A

85 Q) Which one of the following carbohydrates is used for silvering of mirror?

(a) Sucrose

(b) Maltose

(c)Fructose

(d) Glucose

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D

86 Q) Which bioinsecticide was first developed on commercial scale?

(a) Morphine

(b) Quinine

(c) DDT

(d) Sporeine

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D

87 Q) Which one among the following will you put into pure water in order to pass electric current through it?

(a) Kerosene

(b) Mustard oil

(c) Sugar

(d) Lemon juice

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D

88 Q) What is “Agent orange”?

(a)An insecticide

(b) A weedicide

(c) A fertilizer

(d) A biofertilizer

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B

89 Q) "Consider the following statements 

I.One water molecule forms four H-bonds. 

II.Water has high boiling point due to high dipole moment. 

III.When ice is melt, collapse of structure leads to increase in density. 

Which of the statements given above is/are correct?"

(a)I, II and III

(b) I and III

(c) II and III

(d) II only

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A

90 Q) "Select the correct answer about ""Ajinomoto"" 

I. It is a tasty powder and makes a great difference to the way of food taste. 

II. Chemically, it is monosodium glutamate. 

III. It causes the “kwok’s disease"" in man. 

Which of the following statements given above is/are correct?"

(a) Only I

(b) Only II

(c) I, II and III

(d) II and III

Show Answer

C