Chemistry The natural source of hydro-carbon is Carbohydrates Crude oil Coal Biomass Carbohydrates Crude oil Coal Biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of fire extinguisher is used for petroleum fire ? Soda acid type None of these Powder type Foam type Soda acid type None of these Powder type Foam type ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Siderite Limonite Magnetite Haematite Siderite Limonite Magnetite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of gobar gas is Methane Butane Carbon dioxide Isobutane Methane Butane Carbon dioxide Isobutane ANSWER DOWNLOAD EXAMIANS APP
Chemistry In drinking water supply, which of the following treatments is not involved Disinfection Coagulation Sedimentation Softening Disinfection Coagulation Sedimentation Softening ANSWER DOWNLOAD EXAMIANS APP
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