Which of the following is used in conveyor belts?

Which of the following compounds has a sweet,fruity smell?

Which aldehyde compound does not contain an alkyl group?

Draw the electron-dot structure for ethyne. $A$ mixture of ethyne and oxygen is burnt for welding. In your opinion,why cannot we use a mixture of ethyne and air for this purpose?

Which of the following polymer substances is inert towards environmental processes?

Why are vegetable oils considered healthy compared to vegetable ghee? How are vegetable oils converted into vegetable ghee? Name and define the process involved.