Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a covalent compound ? Carbon tetrachloride Magnesium fluoride Calcium chloride Sodium chloride Carbon tetrachloride Magnesium fluoride Calcium chloride Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is used in drinking water as a/an Coagulant Antiseptic Antibiotic Disinfectant Coagulant Antiseptic Antibiotic Disinfectant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Antacid tablets consist of Hydroxides of sodium and aluminium Hydroxides of magnesium and sodium Hydroxides of sodium, magnesium and aluminium Hydroxides of magnesium and aluminium Hydroxides of sodium and aluminium Hydroxides of magnesium and sodium Hydroxides of sodium, magnesium and aluminium Hydroxides of magnesium and aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is present under pressure in soft drinks? Carbon dioxide Oxygen Nitrogen Nitrous oxide Carbon dioxide Oxygen Nitrogen Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest form of iron? Pig iron Wrought iron Cast iron Steel Pig iron Wrought iron Cast iron Steel ANSWER DOWNLOAD EXAMIANS APP
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