Which of the following are exothermic processes?
I) Reaction of water with quick lime
II) Dilution of an acid
III) Evaporation of water
IV) Sublimation of camphor
Important Questions on Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
What type of chemical reaction is respiration?
What does one mean by exothermic and endothermic reactions? Give examples.
A solution of a substance "X" is used for whitewashing.
(a) Name the substance "X"
(b) Write the formula of substance "X"
(c) Write the reaction of substance "X" with water
From where do plants get each of the raw materials required for photosynthesis?
What is photosynthesis? Write any three factors that affect photosynthesis.
The reaction of water with has been shown in the given diagram.
(a) Write the names of and .
(b) Write the name of the reaction taking place.
(c) Write the balanced equation for the reaction taking place.
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Leaf and Liver [form in which glucose is stored].
