Chemistry Main source of lead pollution is from Tobacco Leaded gasoline Sewage Insecticides Tobacco Leaded gasoline Sewage Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is lighter than air It is a noble gas Its atomic number is 2 It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the strongest base in aqueous solution ? Diethylamine Triethylamine Ethylamine Ammonia Diethylamine Triethylamine Ethylamine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 8, 10 2, 10, 8 2, 8, 8, 2 2, 6, 8, 4 2, 8, 10 2, 10, 8 2, 8, 8, 2 2, 6, 8, 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of fire extinguisher is used for petroleum fire ? Powder type Foam type None of these Soda acid type Powder type Foam type None of these Soda acid type ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metal pollution of water is caused by: Acid Plants Wood burning Domestic sewage Paints Acid Plants Wood burning Domestic sewage Paints ANSWER DOWNLOAD EXAMIANS APP
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