List of practice Questions

Which gas is evolved when $PbO_2$ is treated with concentrated $HNO_3$?
A pale blue liquid obtained by equimolar mixture of two gases at $- 30^\circ\, C$ is
Which of the following will not be oxidised by $O_3$?
Which of the following $fcc$ structure contains cations in alternate tetrahedral voids?
A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of metal nitrate is
In $ 1\,m $ long open pipe what is the harmonic of resonance obtained with a tuning fork of frequency $ 480\,Hz $ ?
A body of mass $ 4\,kg $ moving with velocity $ 12\,m/s $ collides with another body of mass $ 6 \,kg $ at rest. If two, bodies stick together after collision, then the loss of kinetic energy of system is
A particle moves in a circular path with decreasing speed. Choose the correct statement
Calorie is defined as the amount of heat required to raise temperature of 1 g of water by 1$^{\circ}$C and it is defined under which of the following conditions ?
Which of the following is not an insect?
Which of the following is wrong statement?
Which one is not correct?
Which of the following compound gives iodoform test?
Two similar coils are kept mutually perpendicular such that their centres coincide. At the centre, find the ratio of the magnetic field due to one coil and the resultant magnetic field through both coils if the same current is flown :
The potential difference between points $A$ and $B$ is:
The net gain ATP from complete oxidation of $1$ molecule of glucose in eukaryote is:
The modified stem of Opuntia is:
The main excretory organ of prawn is:
The dimensional formula for Youngs modulus is:
Substance having ester linkage is:
Protists are (i) unicellular and prokaryote (ii) unicellular and eukaryote (iii) multicellular and eukaryote (iv) autotroph or heterotroph
In the wall of alimentary canal, what is the actual sequence from outer to inner:
In Hatch and Slack pathway:
Heparin is secreted by:
Graphite is soft while diamond is hard because: