Which of the following is also known as combustion?
a) fermentation
b) sublimation
c) burning
d) precipitation
Which of the following is/are chemical change/s?
a) formation of yoghurt
b) photosynthesis
c) respiration
d) all of these
Which of the following is/are chemical change/s?
a) rusting of iron
b) cooking of egg
c) baking of cake
d) all of these
Which of the following is/are chemical change/s?
a) banana rotting
b) fireworks
c) neutralization
d) all of these
In which of the following reaction/s, new substance/s is/are formed?
a) physical reaction
b) chemical reaction
c) reversible reaction
d) both a and b
Which of the following is/are changed during chemical reaction?
a) mass of matter
b) arrangement of particles in matter
c) atoms of matter
d) all of these
