List of practice Questions

Normality of $2 MH _{2} SO _{4}$ is
The current gain a of a transistor is $0.9.$ The transistor is connected to common base configuration. What would be the change in collector current when base current changes by $ 4\,mA $ ?
In a full wave rectifier circuit operating from $ 50\,Hz $ main frequency, the fundamental frequency in the ripple would be
Consider the following statements A and B. Identify the correct answers. A. A zener diode is always connected in reverse bias. B. The potential barrier of a p-n junction lies between 0.1 to 0.3 V, approximately.
In acidic medium, dichromate ion oxidises ferrous ion to ferric ion. If the gram molecular weight of potassium dichromate is 294 g, its gram equivalent weight is ...... g.
Which one of the following compounds forms a red coloured solution on treatment with neutral $ \text{FeC}{{\text{l}}_{\text{3}}} $ solution ?
2 kg of ice at -20$^{\circ}$C is mixed with 5 kg of water at 20$^{\circ}$C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. It is given that the specific heats of water and ice are 1 kcal/kg / $^{\circ}$C and 0.5 kcal/kg /$^{\circ}$C while the latent heat of fusion of ice is 80 kcal/kg
During prolonged fastings, in what sequence are the following organic compounds used up by the body ?
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undegraded ?
During translation initiation in prokaryotes, a GTP molecule is needed in
Degeneration of a genetic code is attributed to the
Bartholin's are situated
Carcinoma refers to
A sample of radioactive element has a mass of $10\, g$ at an instant $t = 0.$ The approximate mass of this element in the sample after two mean lives is
Convergent evolution is illustrated by
Christmas disease is another name for
A particle moves along the $x$-axis from $x=x_{1}$ to $x=x_{2}$ under the action of a force given by $F=2 x$. Then the work done in the process is
Temperature coefficient of a reaction is 2. When temperature is increased from 30$^\circ$C to 100$^\circ$C, rate of the reaction increases by
The concentration of electrolyte required to coagulate a given amount of $As_2S_3$ sol. is minimum in the case of :
Which one of the following reagents will reduce diethyl ether to ethane and ethanol?
An alkaline solution of...... and citrate ions is called:
The value of Planck's constant is $ 6.63 \times 10^{-34} \,Js.$ The velocity of light is $3.0 \times 10^8\, ms^{-1}$. Which value is closest to the wavelength in nanometers of a quantum of light with frequency of $8 \times 10^{15}\, s^{-1}$?
According to IUPAC nomenclature sodium nitroprusside is named as
Glycolysis is
Phospholipids are esters of glycerol with