List of practice Questions

The action of enzymes in living system is to:

Correct gas equation is:

Which combinations of quantum numbers $n, l, m$ and $s$ for the electron in an atom does not provide a permissible solution of the wave equation?

$ Ca^{2+}$ is isoelectronic with:

Consider the following equation of Bernoulli's theorem. $P+\frac{1}{2} \rho v^{2}+\rho g h=K \text { (constant) }$ The dimensions of $K / P$ are same as that of which of the following ?

Which of the following compounds is carborundum?

An $L-C$ circuit is in the state of resonance. If $C=0.1\, \mu F$ and $L=0.25\, H$, neglecting ohmic resistance of circuit, what is the frequency of oscillations?

Which of the following molecules has pyramidal shape?

Photochemical smog pollution does not contain-

A forward biased diode is :-

Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters is-

Which of the following statements is incorrect?

Which of the following statements is incorrect ?

Which of the following statements is incorrect ?

Which of the following statements is true?

Which one of the following is not a derived unit ?

The term anomers of glucose refers to :

Which of the following molecules/ions does not contain unpaired electrons ?

Phenyl magnesium bromide reacts with methanol to give :

Total volume of atoms present in a face-centred cubic unit cell of a metal is (r is atomic radius):

The IUPAC name for the complex $[Co(NO_2)(NH_3)_5]Cl_2$ is:

A body initially at rest is moving with uniform acceleration $a$. Its velocity after $n\, s$ is $v$. The displacement of the body in $2\, s$ is :

The magnetic force on a point charge is $\vec{ F }= q (\vec{ V } \times \vec{ B })$ Here, $q=$ electric charge $\vec{ V }=$ velocity of point charge $\vec{ B }=$ magnetic Held The dimension of $\vec{B}$ is :

The first diffraction minimum due to single slit diffraction is $ \theta $ , for a light of wavelength $5000\,?$. If the width of the slit is $ 1\times 10^{-4}, $ then the value of $\theta$ is :

A velocity of a particle at an instant is $10\, m / s$. After $3\, s$ its velocity will become $16\, m / s$. The velocity at $2\, s$, before the given instant will be :