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Chemistry CBSE Live product
Class 10 (2026-27)
Carbon and its compounds
Chemical Properties of Carbon Compounds
1.
Saturated and unsaturated hydrocarbons
Question:
2
m.
Select the correct answer:
1.
Which aspect aids in the complete combustion of hydrocarbons?
i. Supply of oxygen or air
ii. Low oxygen supply
iii. Ignition temperature
Only i
ii and iii
i and ii
i and iii
2.
When you spot black smoke billowing from a vehicle's exhaust, what does it signify?
Due to inadequate supply of air for fuel combustion.
Clogged air filter of the vehicle.
Incomplete combustion of fuel.
All of the above
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