Chemistry When iron rusts, its weight Remains the same Decreases First increases and then decreases Increases Remains the same Decreases First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of ‘Coca Cola’ is due to the presence of Hydrochloric acid Acetic acid Phosphoric acid Formic acid Hydrochloric acid Acetic acid Phosphoric acid Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid in excess Nitric acid and acetic anhydride Nitric acid and ethyl alcohol Nitric acid and acetic acid Nitric acid in excess Nitric acid and acetic anhydride Nitric acid and ethyl alcohol Nitric acid and acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1022 6.023 × 1023 6.023 × 1025 6.023 × 1024 6.023 × 1022 6.023 × 1023 6.023 × 1025 6.023 × 1024 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When Hydrogen starts burning in air, it produces ? Methane Ammonia Water Carbonic Acid Methane Ammonia Water Carbonic Acid ANSWER DOWNLOAD EXAMIANS APP
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