[D] heating copper wire in the presence of air at high temperature A chemical reaction is a change in which one or more substance or reactants react to form new substance with entirely different properties. Heating of copper in presence of air at high temperature gives copper oxide. Such as: 2Cu + ORead more
[D] heating copper wire in the presence of air at high temperature
A chemical reaction is a change in which one or more substance or reactants react to form new substance with entirely different properties. Heating of copper in presence of air at high temperature gives copper oxide. Such as:
2Cu + O₂ → 2CuO
(i) Through vegetative propagation, we can produce those plants which have lost power to bear seeds. (ii) Plants produced through this process grow faster and bear flowers and fruits earlier. (iii) The new plants produced through this process are exact copy of their parents.
(i) Through vegetative propagation, we can produce those plants which have lost power to bear seeds.
(ii) Plants produced through this process grow faster and bear flowers and fruits earlier.
(iii) The new plants produced through this process are exact copy of their parents.
Which one of the following processes involve chemical reactions ?
[D] heating copper wire in the presence of air at high temperature A chemical reaction is a change in which one or more substance or reactants react to form new substance with entirely different properties. Heating of copper in presence of air at high temperature gives copper oxide. Such as: 2Cu + ORead more
[D] heating copper wire in the presence of air at high temperature
See lessA chemical reaction is a change in which one or more substance or reactants react to form new substance with entirely different properties. Heating of copper in presence of air at high temperature gives copper oxide. Such as:
2Cu + O₂ → 2CuO
What do you mean by amplitude of oscillation?
The maximum displacement of the bob from its mean position on either side is called the amplitude of oscillation.
The maximum displacement of the bob from its mean position on either side is called the amplitude of oscillation.
See lessName some appliances which work on heating effect of electric current.
Electric iron, oven, geyser etc.
Electric iron, oven, geyser etc.
See lessWhat is the standard unit for time period?
Standard unit for time period is second (s).
Standard unit for time period is second (s).
See lessWhat do you mean by state of motion?
The objects which change their position with time are said to be in motion.
The objects which change their position with time are said to be in motion.
See lessWhat are the advantages of growing new plant by vegetative propagation?
(i) Through vegetative propagation, we can produce those plants which have lost power to bear seeds. (ii) Plants produced through this process grow faster and bear flowers and fruits earlier. (iii) The new plants produced through this process are exact copy of their parents.
(i) Through vegetative propagation, we can produce those plants which have lost power to bear seeds.
See less(ii) Plants produced through this process grow faster and bear flowers and fruits earlier.
(iii) The new plants produced through this process are exact copy of their parents.