Question Detail

Which element found in all organic compounds ?

carbon
nitrogen
calcium
none of them

Answer: Option A

Similar Questions :

1. Air is a

compound
colloid
element
mixture

Answer: Option D

2. The term PVC used in the plastic industry stands for

polyvinyl chloride
polyvinyl carbobate
phosphor vanadiu chloride
phosphavinyl chloride

Answer: Option A

3. A catalyst is a substance which

increases the activation energy
increases the rate of reaction and increases the equilibrium concentration of products
changes the equilibrium of a reaction so that the concentration of the product increases
hastens the attainment of equilibrium

Answer: Option D

4. What is laughing gas ?

nitrous oxide
nitric oxide
nitrogen oxide
nitrogen peroxide

Answer: Option A

5. Which one of the following is the softest?

sodium
iron
aluminium
lithium

Answer: Option A

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