List of practice Questions

Which one of the following is correctly matched regarding an institute and its location?
The chemical formula of 'tear gas' is
Which of the following is a primary halide?
A thin circular ring of mass m and radius R is rotating about its axis with a constant angular velocity $\omega.$Two objects each of mass M are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with an angular velocity $\omega.$' = :
Which of the following is a lyophobic colloidal solution?
Which of the following molecules will not show optical activity?
Which of the following solution can scatter light ?
Which of the following sets includes all bacterial disease?
Which one of the following is not a surfactant?
Which one of the following is the correct statement?
Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?
Which of the following compounds is coloured?
Which of the following amines, can give N-nitrosoamine on treatment with $HNO_2$ ?
When white light passes through a prism, the deviation is maximum for
When phenol reacts with phthalic anhydride in presence of $H _{2} SO _{4}$ and heated and hot reaction mixture is poured in $NaOH$ solution, then product formed is
What is common between chloroplasts, chromoplasts and leucoplasts?
Water bloom is generally caused by
Two sound waves with wavelength $5.0 \,m$ and $5.5 \,m$ respectively, each propagate in a gas with velocity $330 \,m/s$. We expect the following number of beats per second
Two particles of equal charges after being accelerated through the same potential difference enter a uniform transverse magnetic field and describe circular path of radii $ {{R}_{1}} $ and $ {{R}_{2}} $ respectively. Then the ratio of their masses $ ({{M}_{1}}/{{M}_{2}}) $ is
Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parallel to a constant potential difference. If the rates of heat produced in the two cases are $H_s$ and $H_p$ respectively, then $H_s /H_p$ will be
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
Three point charges $+q,-2 q$ and $+q$ are placed at points $(x=0, y=a, z=0),(x=0, y=0, z=0)$ and $(x=a, y=0, z=0)$, respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are
Three charges $ {{Q}_{0}},-q $ and $ -q $ are placed at the vertices of an isosceles right angle triangle as in the figure. The net electrostatic potential energy is zero if $ {{Q}_{0}} $ is equal to
There is no division of cytoplasm after mitosis, then the condition will be
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be