Chemistry Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ? Methyl red Methylene blue Methyl orange Phenolphthaline Methyl red Methylene blue Methyl orange Phenolphthaline ANSWER DOWNLOAD EXAMIANS APP
Chemistry The apparatus used to test acidity of aqueous solution is PH meter Hygrometer Ammeter Acidmeter PH meter Hygrometer Ammeter Acidmeter ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH value between 6.5-7.5 makes the soil None of these Neutral Basic Acidic None of these Neutral Basic Acidic ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a chemical bond is formed ? Energy is always absorbed Energy is neither released nor absorbed More energy is released than is absorbed Energy in always released Energy is always absorbed Energy is neither released nor absorbed More energy is released than is absorbed Energy in always released ANSWER DOWNLOAD EXAMIANS APP
Chemistry In vulcanisation process, rubber can be hardened by adding Silicon Alcohol Nitrogen Sulphur Silicon Alcohol Nitrogen Sulphur ANSWER DOWNLOAD EXAMIANS APP
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