Chemistry What is the most common salt in sea water ? Sodium chloride Potassium chloride Calcium carbonate Magnesium sulphate Sodium chloride Potassium chloride Calcium carbonate Magnesium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1020 6.023 × 1023 '6.023 × 10–20 '6.023 × 10–23 6.023 × 1020 6.023 × 1023 '6.023 × 10–20 '6.023 × 10–23 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of an atom consists of electrons and protons electrons and neutrons protons and neutrons All of these electrons and protons electrons and neutrons protons and neutrons All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Newton Avogadro Pascal Dalton Newton Avogadro Pascal Dalton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The strongest acid of the following is P-chlorophenol O-nitrophenol P-nitrophenol M-nitrophenol P-chlorophenol O-nitrophenol P-nitrophenol M-nitrophenol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The addition of gypsum to portland cement helps in : Preventing rapid setting of cement Rapid setting of cement Increasing the strength of cement Reduction in the cost of cement Preventing rapid setting of cement Rapid setting of cement Increasing the strength of cement Reduction in the cost of cement ANSWER DOWNLOAD EXAMIANS APP
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