List of top Questions asked in WBJEE

Which of the following will decrease the $pH$ of a $50\, ml$ solution of $0.01 \,M \,HCl$?

For the reaction $SO_{2} +\frac{1}{2} O_{2} =SO_{3,}$ if we write $K_{p}=K_{c} \left(RT\right)^{x},$ then x becomes

Trophic levels in ecosystem is formed by

By which of the following methods, new and better varieties of plants can be formed?

Ornithorhynchus is an example of

Scientific name of sunflower is

Name of a gaseous plant hormone is

Which of the following is an example of man-made ecosystem?

Which one of the following is the American poultry breed?

Which of the following carbocations will be most stable ?

Which is the correct sequence of arrangement of types of WBC in decreasing order in terms of number per $ m{{m}^{3}} $ of human blood?

Which is not applicable to the biological species concept?

Which Ig is produced in primary immune response?

Which element is cause of itai itai disease?

Viruses were discovered by

The duration of cardiac cycle is

The discovery of gibberellins is related with one of the following

The chemical nature of chromatin is as follows

Sporopollenin is chemically

$\int\limits_{0}^{1000} e^{x-\left[x\right]} dx$ is equal to

In $Cu$-ammonia complex, the state of hybridization of $Cu^{+2}$ is

In a triangle $ABC$, if sin A sin $B =\frac{ab}{c^{2}}$, then the triangle is

For the Paschen series the values of $n_{1}$ and $n_{2}$ in the expression $\Delta E=Rhc\left(\frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}}\right)$ are

For making distinction between $2$-pentanone and $3$-pentanone the reagent to be employed is

"Electron" is an alloy of