Carbon monoxide creates suffocation and causes………
a) ulcer
b) kidney stone
c) death
………reaction is a chemical reaction in which the reaction proceed with release of heat & light energy.
a) exothermic
b) endothermic
c) both a & b
d) none of these
The energy (heat) produced during combustion reaction is used for useful purposes such as………
a) transportation
b) generating electricity
c) industrial operation
d) all of these
Alkanes:-
Alkenes are unsaturated hydrocarbons that contain at lest one carbon-carbon..…….bond.
a) single
b) double
c) triple
Alkenes are also called ………….
a) olefins
b) paraffins
c) both a and b
d) none of these
