Chemistry PH scale ranges from 0 – 14 0 – 7 8 – 14 None 0 – 14 0 – 7 8 – 14 None ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Carbon dioxide Sulphur dioxide Carbon monoxide Carbon suboxide Carbon dioxide Sulphur dioxide Carbon monoxide Carbon suboxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hydrogen is not found in atmosphere because It is absorbed by plants It is highly inflammable It immediately combines with oxygen to form water It is the lightest gas It is absorbed by plants It is highly inflammable It immediately combines with oxygen to form water It is the lightest gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Sludge Sewage Sewer Scum Sludge Sewage Sewer Scum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inert gases are ____ in water None of these soluble insoluble sparingly soluble None of these soluble insoluble sparingly soluble ANSWER DOWNLOAD EXAMIANS APP
Chemistry Poison used for killing rats is Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) Magnesium phosphide (Mg3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) Magnesium phosphide (Mg3P2) ANSWER DOWNLOAD EXAMIANS APP
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