Fill in the blanks with the correct words from the brackets :
Alkene active
.............. (saturated / unsaturated) hydrocarbon.
They differ from alkanes due to the presence of

Fill in the blanks with the correct words from the brackets : Alkene have ........... (double/single) bonds .

Fill in the blanks with the correct words from the brackets : Alkene active ............ (addition/substituation) reactions.

Fill in the blanks with the correct words from the brackets : Alkene active (i) ......... (analogous/homologus). Series of

Birds differ from nonchordates due to presence of

Fill in the blanks with the correct words from the brackets. Generally ionic compounds exist in ................(solid/liquid/gas) state.

Fill in the blanks with apporopriate word : Ethene and ethyne are .................. Hydrocarbons..

Fill in the blanks with the correct words from the brackets: Alkenes are the (i) __________ analogous /homologous) series of (ii) ___________(saturated / unsaturated) hydrocarbons. They differ from alkanes due to the presence of (iii) ______ (double/single) bonds. Alkenes mainly undergo (iv) __________ (addition / substitution) reactions.

Alkenes are ______hydrocarbons. (saturated/unsaturated)

Copy and complete the following paragraph using the options given in brackets : Alkenes are a homologous series of (i) ............... (saturated/unsaturated) hydrocarbons characterised by the general formula (ii) ............ ( C_(n)H_(2n+2)// C_(n)H_(2n)) . Alkenes undergo (iii) ................. (addition/substitution) reactions and also undergo (iv) .... (hydrogenation / dehydrogenation) to form alkanes.

Alkanes are ______ hydrocarbons. (saturated, unsaturated)