Chemistry Acid rain is caused by the pollution of environment by Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of NaCl crystal is Octahedral Square planar Body centered cubic Face centered cubic Octahedral Square planar Body centered cubic Face centered cubic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 6.023 × 1023 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 6.023 × 1023 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of one Avogadro number of helium atom is 4 x 6.02 x 1023 gram 1.00 gram 8.00 gram 4.00 gram 4 x 6.02 x 1023 gram 1.00 gram 8.00 gram 4.00 gram ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Distilled water Ground water Rain water Tap water Distilled water Ground water Rain water Tap water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate ANSWER DOWNLOAD EXAMIANS APP
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