Chemical Reactions
| Description: Chemical Reactions | |
| Number of Questions: 10 | |
| Created by: Garima Pandit | |
| Tags: Chemical Reactions Role of catalyst Charachteristics of chemical change Reaction mechanism Strong and weak acids |
When iron nails are placed in blue coloured solution of copper sulphate, the solution turns green. Which type of chemical reaction does it represent?
Which of the following statements are true regarding a catalyst? I. It is a substance which increases the rate of reaction. II. It is a substance which reduces the activation energy. III. It is a substance which increases the activation energy. IV. It is a substance which is consumed in the reaction.
Which of the following represents a chemical change?
In reaction: P4O10 + 6H2O � 4H3PO4, the oxide of phosphorous act as
Balancing of chemical equation is done in accordance with
Consider the following partial ionic reaction: S2 + 32H2O � 8SO4- + 64H+ + 48e- The equivalent weight of sulphur is
Which of the following can be considered as weak electrolyte?
Which of the following is not a redox reaction?
In which of the following ions the oxidation state of chlorine is +5?
A solution of ammonium chloride in water