Chemistry Diamond is harder than graphite because of : Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two electrons in an orbital are differentiated by which of the following ? Principal quantum number Magnetic quantum number Spin quantum number Azimuthal quantum number Principal quantum number Magnetic quantum number Spin quantum number Azimuthal quantum number 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 × 1023 6.023 × 1020 '6.023 × 10–20 '6.023 × 10–23 6.023 × 1023 6.023 × 1020 '6.023 × 10–20 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Light metals Halogens Noble gases Heavy metals Light metals Halogens Noble gases ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbene Carbanion Free radical Carbocation Carbene Carbanion Free radical Carbocation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants A B C 3 1 2 A B C 2 1 3 A B C 2 3 1 A B C3 2 1 A B C 3 1 2 A B C 2 1 3 A B C 2 3 1 A B C3 2 1 ANSWER DOWNLOAD EXAMIANS APP
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