Question

Name the following: -
1. The process of conversion of solid to vapor state and on cooling directly back
to solid without changing into liquid state.
2. Total number of protons and neutrons in an atom of an element.
3. Number of hydrogen atoms which can combine with one atom of element
forming a compound.
4. A decomposition reaction which takes place in presence of sunlight.
5. Substance which allows electric current to enter and leave the electrolyte.


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Answer 1

1. sublimation

2.Mass number

3. one

4. photo decomposition or photochemical reaction

5.electrodes

Answer 2

1. Change in state due to change in temperature

2.Mass Number

3. One

4. Photochemical Decomposition

5. Electrodes

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