The correct structure of the drug paracetamol is

Which one of the following reactions occurs at the anode in the Castner process of extracting sodium metal?

Which stage is indicated by the given figure?

Carbohydrates,the most abundant biomolecules on Earth,are produced by:

The input resistance of a common emitter transistor amplifier,if the output resistance is $500 \, k\Omega$,the current gain $\alpha = 0.98$ and power gain is $6.0625 \times 10^6$,is....$\Omega$

If the direction ratios of two lines are given by $3lm - 4ln + mn = 0$ and $l + 2m + 3n = 0$,then the angle between the lines is: