Fungi are filamentous with the exception of $X$ which is unicellular. Identify $X$.

Let $A$ and $B$ be two symmetric matrices of the same order. Then,the matrix $AB - BA$ is

Which of the following is an amphoteric oxide?

Acetaldehyde forms a white crystalline precipitate on mixing with a ...... solution of

Two containers of equal volume contain the same gas at pressure $P_1$ and $P_2$ and absolute temperature $T_1$ and $T_2$ respectively. On joining the vessels,the gas reaches a common pressure $P$ and common temperature $T$. The ratio $P/T$ is equal to

The compound formed when gypsum is dissolved in aqueous ammonium sulphate solution is: