RRB GROUP D Chemistry Quiz - 43

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Question 1:

Which polymer is used for making non-stick surface coating for utensils?

Question 2:

Which of the following particulate which cause bronchitis?

Question 3:

Which of the following gas is used in Cigarette lighters?

Question 4:

Which of the following is used in making ointment for curing skin diseases ?

Question 5:

Vinegar is also known as