List of practice Questions

The surface of the Endoplasmic Reticulum (ER) is covered with :
Which one has no intermediate host?
Leucopenia is the condition where
Which of the following gives propyne on hydrolysis?
Auxospore forrmation is seen in
An $ \alpha - $ particle of mass m suffers one dimensional elastic collision with a nucleus of unknown mass. After the collision the $ \alpha - $ particle is scattered directly backwards losing 75% of its kinetic energy. The mass of the unknown nucleus is:
In a resonance pipe the first and second resonances are obtained at depths $ 22.7\,cm $ and $ 70.2\,cm $ respectively. What will be the end correction?
Callus is
$HCl$ is secreted by :
Inner lining of blood vessels is formed by:
Aluminium oxide may be electrolysed at 1000 $^{\circ}$C to furnish aluminium metal (Atomic mass = 27 amu: 1 faraday = 96,500 Coulombs). The cathode reaction is $Al^{3+} + 3e^- \to Al^{\circ}$ To prepare 5.12 kg of aluminium metal by this method would require :
The salt soluble in excess of sodium hydroxide solution is
Concentrated nitric acid with aluminium gives
Common feature of Euglena, Amoeba, Tryanosoma and Entamoeba is
If a is the degree of dissociation of $Na_2SO_4$, the van?t Hoff factor (i) used for calculating the molecular mass is :
The volume of a colloidal particle, $V_C$ as compared to the volume of a solute particle in a true solution $V_S$, could be :
The electric flux for Gaussian surface A that enclose the charged particles in free space is (given $q_1= - 14\, nc, q_2 = 78.85\, nC, q_3 = - 56\, nC$)
Noble gases are adsorbed by:
Senescence is the time when age associated defects are manifested. Certain genes may be undergoing sequential switching on and off during one?? life.
Synthetic polymer which resembles natural rubber is:
Potometer is used to measure:
Find out the value of current through $2\Omega$ resistance for the given circuit.
A moving coil galvanometer of resistance $100 \Omega$ is used as an ammeter using a resistance $0.1 \Omega$. The maximum deflection current in the galvanometer is $100 \mu A$. Find the current in the circuit, so that the ammeter shows maximum deflection.
A high resistance voltmeter connected across a cell reads 2 volts. When a resistance of $19 \, \Omega$ is connected in the cell circuit, voltmeter reading drops to $1.9$ volts. The internal resistance of the-cell is
A wire is stretched such that its length -increases by $0.2 \%$. Its resistance