Diazo-coupling is useful to prepare some

The value of $\sqrt{12\sqrt{5} + 2\sqrt{55}}$ is

In which of the following is incomplete double circulation observed?

$A$ healthy person eats the following diet: $5 \ gm$ raw sugar,$4 \ gm$ albumin,$10 \ gm$ pure buffalo ghee adulterated with $2 \ gm$ vegetable ghee (hydrogenated vegetable oil) and $5 \ gm$ lignin. How many calories is he likely to get?

In the following circuit,the equivalent resistance between $A$ and $B$ is ...... $\Omega$.

Which of the following is not a fat-soluble vitamin?