Chemistry What is the chemical name for ‘Baking Soda’ ? Sodium nitrite Sodium bicarbonate Sodium carbonate Sodium nitrate Sodium nitrite Sodium bicarbonate Sodium carbonate Sodium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and b C and d B and c A and c A and b C and d B and c A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry Epsom salt is used In making tooth paste As purgative In softening water In paper industry In making tooth paste As purgative In softening water In paper industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry Entropy of Universe is always Decreasing Constant Zero Increasing Decreasing Constant Zero Increasing ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Radon Helium Argon Krypton Radon Helium Argon Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum ANSWER DOWNLOAD EXAMIANS APP
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