List of practice Questions

The correct symbol of the species with number of electrons, protons and neutrons as $ 18,16 $ and $ 16 $ respectively is

The correct order of basic strength in aqueous solution is

The correct combination of names for isomeric alcohols with molecular formula $C_4H_{10}O $ is/are

The area enclosed by the curves $y = sin\, x + cos \,x$ and $y\, =\, | cos\, x - sin\, x |$ over the interval $ \Bigg [0 , \frac{\pi}{2} \Bigg] $ is

The accumulation of urea in the blood due to malfunctioning of kidneys is referred as

The acidic hydrolysis of ether $(X)$ shown below is fastest when

Television picture tube is basically

Statin, a blood-cholesterol lowering agent, is commercially obtained from

Stilt roots are found in

Prothallus of Petridophytes is

Protein encoded by gene cry $I \,AB$ controls the infestation of which of the following insects

In which year, IUPAC draft recommends that anionic ligands will end with-ido so that chloro would become chlorido ?

In the figure, a ladder of mass $m$ is shown leaning against a wall. It is in static equilibrium making an angle $\theta$ with the horizontal floor. The coefficient of friction between the wall and the ladder is $\mu_{1}$ and that between the floor and the ladder is $\mu_{2}$. The normal reaction of the wall on the ladder is $N _{1}$ and that of the floor is $N _{2}$. If the ladder is about to slip, then

In respiration, more than one $R. $ value results from the use of

In order to lessen the suffering of phenylketonurics their diet should have

In habitual alcohol drinkers liver gets damaged because of

In $DNA$ fingerprinting, the process of $DNA$ hybridisation with the help of specific $DNA$ probe is described as

For $x \in(0, \pi)$, the equation $\sin x+2 \sin 2 x-\sin 3 x=3$ has

In a monocot leaf stomata are present

In a dihybrid cross between two heterozygotes $AaBb \times AaBb$, if we get $3 : 1$ ratio among the off springs, the reason for this may be

Let $ f(x) $ be differentiable on the interval $ (0, \infty) $ such that $ f(1) = 1 $ and $ lim_{t \rightarrow x} \frac {t^2f(x)-x^2f(t)}{t-x} =1 $ for each $ x>0 $ . Then, $ f(x) $ is

Let $ V_r $ denote the sum of the first $ r $ terms of an arithmetic progression $ (AP) $ whose first term is $ r $ and the common difference is $ (2r - 1) $ . The sum $ V_1 + V_2 + ..... + V_n $ is

Let $ f $ be the function $ [-\pi, \pi] $ given by $ f(0) = 9 \,and\,f(x) \,=\, f(x) = sin (\frac {9x}{2})/sin(\frac {x}{2}) $ for $ x \neq 0 $ . The value of $ \frac{2}{\pi} \int^{\pi}_{-\pi} $ $ f(x) dx $ is

If $ (1+x+x^2)^n = a_o +a_1x +a_2x^2 +.....+a_{2n} x^{2n}, $ then $ a_o+a_3+a_6+.....= $

$ \frac {C_1}{C_o} + 2 \frac {C_2}{C_1} +3\frac {C_3}{C_2} + .... +n \frac {C_n}{C_{n-1}} $ =