Question
Alkanes and Alkenes
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Answer
| Alkanes | Alkenes | ||
| $(i)$ | Hydrocarbons containing carbon to carbon single bonds $(C-C)$ only are called alkanes or Paraffins. | $(i)$ | The hydrocarbon which contain carbon to carbon double bonds $(C=C)$ are called Alkenes or Olefins. |
| $(ii)$ | Their general formula is $C_nH_{2n+2}$ | $(ii)$ | Their general formula is $C_nH_{2n}$ |
| $(iii)$ | They are chemically less reactive. | $(iii)$ | They are chemically more reactive. |
| $(iv)$ | They undergo substitution reaction. | $(iv)$ | They undergo addition reaction. |
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(i) What are the masses of the objects shown?
(ii) What is the distance between their centres?
(iii) Write gravitational force between them.
(iv) Why gravitation constant is called universal constant?
(v) What will happen to gravitational force if mass of one of the objects is doubled?
(vi) What is the value of universal constant in SI?