List of top Questions asked in WBJEE

Let $S$ denote the sum of the infinite series $1+\frac{8}{2!}+\frac{21}{3!}+\frac{40}{4!}+\frac{65}{5!} ....... $. Then

One mole of an ideal monoatomic gas is heated at a constant pressure from $0^{\circ} C$ to $100^{\circ} C$. Then the change in the internal energy of the gas is (Given $R=8.32 \,J\,mol ^{-1} \,K ^{-1}$ )

If \(\alpha, \beta\) are the roots of the quadratic equation \(x^2 + px + q = 0\), then the values of \(\alpha^{3}, \beta^{3}\) and \(\alpha^{4}+\alpha^{2}\beta^{3}+\beta^{4}\) are respectively

The component of bacteria that retains the crystal violet stain during Gram-staining is

Which of the following organs does not produce any digestive enzymes?

How many ATP are produced when one molecule of $FADH_2$ is oxidized to $FAD$ through Electron Transport System?

A circuit consists of three batteries of emf $E_{1}=1 \,V , E_{2}=2 \,V$ and $E_{3}=3 \,V$ and internal resistances $1 \,\Omega, 2\, \Omega$ and $1\, \Omega$ respectively which are connected in parallel as shown in the figure . The potential difference between points $P$ and $Q$ is 

Sand flies play significant role in spreading Kala-azar because they

Objects less than $0.2\, �m$ in size cannot be seen under light microscope because

Which of the following hormones is a derivative of fatty acid?

Which valve is present at the opening of coronary sinus?

Which codon is not an indicator of completion of protein synthesis ?

The partial floral formula of a flower is $K_{\left(5\right)} C_{5}A_{\left(\infty\right)} \frac{G_{5}}{ }$ Which f the following set of information is conveyed here?

The objective of �Ramsar Convention� was

The covering of lungs is called

The correct sequence of organelles in which glycolate and glyoxylate are produced sequentially in photorespiration, is

The concept of Hot-Spot was first introduced by

Intermediate host of malarial parasite is

Immunity that develops in the fetus after receiving antibodies from mother�s blood through placenta is

Let $S=\frac{2}{1} ^{n}C_{0}+\frac{2^{2}}{2} ^{n}C_{1}+\frac{2^{3}}{3} ^{n}C_{2}+ ...... +\frac{2^{n+1}}{n+1} ^{n}C_{n}$. Then $S$ equals

Edible part of apple and pear is

Cleistogamous flowers are

Pseudopodia are produced by

Formation of polysome does not require

Insect pest resistant Bt-cotton plant was developed using