The solubility product of the sparingly soluble salt \(\mathrm{AB}_2\) is \(2.56 \times 10^{-10}\) at 298 K . Calculate its solubility in \(\mathrm{mol} \mathrm{dm}^{-3}\) at the same temperature?
Which from following is NOT a globular protein?
Calculate the number of particles present per unit cell if mass of a particle is \(8.0 \times 10^{-23} \mathrm{~g} \left[\rho \times a^3=3.2 \times 10^{-22} \mathrm{~g}\right]\)
Which of the following is existing oxoacid of fluorine?
Identify source of Eugenol from following.
Find the temperature from following graph so that highest amount of a gas is adsorbed
Which of the following compounds is formed when ether is dissolved in cold concentrated sulphuric acid?
Which of the following species acts as an weakest reducing agent?
Which of the following is NOT obtained when mixture of methyl bromide and ethyl bromide is treated with sodium metal in presence of dry ether?
Which among the following salts turns blue litmus red in its aqueous solution?
\[ \text { What is IUPAC name of following compound? } \]
Calculate \(\Delta \mathrm{H}^{\circ}\) for a reaction if \(\Delta \mathrm{S}^{\circ}=120 \mathrm{JK}^{-1}\) and \(\Delta \mathrm{G}^{\circ}=28000 \mathrm{~J}\)
Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval between two consecutive maxima is
The value of the shunt resistance that allows \(10 \%\) of the main current through the galvanometer of \(99 \Omega\) is
' \(n\) ' identical small spherical drops of water, each of radius ' \(r\) ' and charged to the same potential ' v ' are combined to form a big drop. The potential of a big drop is
In LCR series circuit, when ' \(L\) ' is removed from the circuit, the phase difference between voltage and current in the circuit is \(\frac{\pi}{3}\). If ' \(C\) ' is removed from the circuit instead of \(L\) then phase difference is again \(\frac{\pi}{3}\). The power factor of the circuit is \(\left(\tan 60^{\circ}=\sqrt{3}\right)\)
A monoatomic ideal gas is compressed adiabatically to \(\left(\frac{1}{27}\right)\) of its initial volume. If initial temperature of the gas is ' T ' K and final temperature is ' xT ' K , the value of ' x ' is
The power factor of a CR circuit is \(\frac{1}{\sqrt{2}}\), If the frequency of a.c. signal is halved, then the power factor of the circuit will become
The volume of given mass of a gas is increased by \(7 \%\) at constant temperature. The pressure should be decreased by
Two point charges \(\mathrm{q}_1\) and \(\mathrm{q}_2\) are ' \(l\) ' distance apart. If one of the charges is doubled and distance between them is halved. The magnitude of force becomes \(n\) times, where \(n\) is
A radioactive element has rate of disintegration 9000 disintegration per minute at a particular instant. After two minutes it becomes 3000 disintegration per minute. The decay constant per minute is
At poles, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator, for same setting, to produce resonance with same fork, the vibrating length of wire
