Chemistry Quartz is made of Sodium Sulphate Calcium Silicate Sodium Silicate Calcium Sulphate Sodium Sulphate Calcium Silicate Sodium Silicate Calcium Sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The high reactivity of fluorine is due to strong F - F bond its high electro negativity small size of fluorine atom availability of d-orbitals strong F - F bond its high electro negativity small size of fluorine atom availability of d-orbitals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? None of these Aluminium powder Solder Aluminium sulphate None of these Aluminium powder Solder Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Has no action on the rate of the reaction Decreases the rate of reaction Increases the rate of the reaction None of these Has no action on the rate of the reaction Decreases the rate of reaction Increases the rate of the reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a covalent compound ? Magnesium fluoride Carbon tetrachloride Sodium chloride Calcium chloride Magnesium fluoride Carbon tetrachloride Sodium chloride Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Bronze Brass Silver Copper Bronze Brass Silver Copper ANSWER DOWNLOAD EXAMIANS APP
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