Chemistry Helium gas is filled in ballons because Its atomic number is 2 It is lighter than air It is a noble gas It is one of the constitutents of water Its atomic number is 2 It is lighter than air It is a noble gas It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Roasting Oxidation Electrolysis Zone refining Roasting Oxidation Electrolysis Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which mineral is the ore of aluminium ? Haematite Bauxite Magnetite Siderite Haematite Bauxite Magnetite Siderite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gunpowder consits of a mixture of Sand and TNT Sulphur, sand and charcoal Nitre, sulphur and charcoal TNT and charcoal Sand and TNT Sulphur, sand and charcoal Nitre, sulphur and charcoal TNT and charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Smoke is formed due to Solid dispresed in liquid Gas dispresed in solid Solid dispersed in gas Gas dispersed in gas Solid dispresed in liquid Gas dispresed in solid Solid dispersed in gas Gas dispersed in gas ANSWER DOWNLOAD EXAMIANS APP
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