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Question 1/30
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Which is the essential element in all organic compounds?
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Question 2/30
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Which property of the elements is a whole number?
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Question 3/30
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Which is produced during allergic reactions?
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Question 4/30
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Uranium eventually decays into a stable isotope of element?
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Question 5/30
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Vinegar is the chemical name of –
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Question 6/30
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Which is the softest?
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Question 7/30
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Paper is made by–
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Question 8/30
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Which is printed on a commonly used fluorescent tube light?
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Question 9/30
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What is the average value of salt present in sea water?
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Question 10/30
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The use of Heat treatment of ore that includes smelting and roasting is termed as–
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Question 11/30
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If a material, placed in a magnetic field is thrown out of it, then how is the material?
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Question 12/30
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What is a mixture of potassium nitrate, powdered charcoal and sulphur called?
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Question 13/30
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The weight of 6.023 × 1022 atoms of carbon is –
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Question 14/30
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Aqueous Hydrolysis of sucrose formed –
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Question 15/30
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Which chemically inactive gas present in the atmosphere?
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Question 16/30
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Which is considered as a cell withing a cell?
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Question 17/30
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What is the natural source of hydrocarbon?
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Question 18/30
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What does Soda water contain?
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Question 19/30
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The material used in the manufacture of Lead pencil is–
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Question 20/30
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What does M3 include?
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Question 21/30
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Which is the lightest gas?
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Question 22/30
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Which of the following element is most electronegative?
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Question 23/30
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Which gas is used as a disinfectant in drinking water?
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Question 24/30
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Which compound is used for writing on glass?
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Question 25/30
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There is no change in radioactive element (Mass or change) during –
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Question 26/30
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Kitchen or Cooking Gas is a mixture of –
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Question 27/30
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Ultra purification of a Metal is done by–
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Question 28/30
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If we sprinkle common salt on an earthworm, why does it die?
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Question 29/30
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What is the most soluble in water?
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Question 30/30
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What is the fourth State of Matter?