List of practice Questions

Find the odd one out

Direction: Read the passage and answer. From the car brands mentioned in the setup, which one does not belong to the group?

For which one of the following systems at equilibrium, at constant temperature will the doubling of die volume cause a shift to the right?

Given that the equilibrium constant for the reaction $ {2SO2(g) + O2(g) <=> 2SO3(g)}$ has a value of278 at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature? $ {SO3(g) <=> SO2(g) + \frac{1}{2} O2(g)}$

Which of the following compounds is formed when a mixture of $K_2Cr_2O_7$ and NaCl is heated with cone. $H_2SO_4$ ?

Compound 'A' of molecular formula $C_4H_{10}O$ on treatment with Lucas reagent at room temperature gives compound ?B\ When compound ?B? is heated with alcoholic $KOH$, it gives isobutene. Compound ?A? and ?B? are respectively

In a common emitter transistor amplifier $\beta = 60, \,R_o = 5000\, \Omega$ and internal resistance of a transistor is $500 \,\Omega$Voltage amplification. The voltage amplification of amplifier will be

The resistance of $0.01\, N$ solution of an electrolyte was found to be $220\, ohm$ at $298\, K$ using a conductivity cell with a cell constant of $0.88\,cm^{-1}$. The value of equivalent conductance of solution is -

If A and B are events such that P(A) = 0.42, P(B) = 0.48 and P(A and B) = 0.16. then, I. P(not A) = 0.58 II. P(not B) = 0.52 III. P(A or B) = 0.47

Ionisation energy of $He^+$ is $19.6 \times 10^{-18}\, J$ atom$^{-1}$. The energy of the first stationary state $(n= 1)$ of $Li^{2+}$ is

The molecular formula of diphenyl methane, How many structural isomers are possible when one of the hydrogens is replaced by a chlorine atom?

For the reaction $2N_2O_5 \to 4NO_2 + O_2$, rate and rate constant are $1.02 \times 10^{-4}$ mol $lir^{-1}$ $sec^{-1}$ and $3.4 \times 10^{-5}$ $sec^{-1}$ respectively then concentration of $N_2O_5$ at that time will be

An element occuring in the bcc structure has $12.08 \times 10^{23}$ unit cells. The total number of atoms of the element in these cells will be

In Williamson synthesis if tertiary alkyl halide is used than

The correct order of the thermal stability of hydrogen halides (H-X) is

The reagent (s) which can be used to distinguish acetophenone from benzophenone is (are)

In case of nitrogen, $NCl_3$ is possible but not $NCl_5$ while in case of phosphorus, $PCl_3$ as well as $PCl_5$ are possible. It is due to

In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction:

In a compound, atoms of element Y form ccp lattice and those of element X occupy $2/3^{rd}$ of tetrahedral voids. The formula of the compound will be

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is

The V-I characteristic of a diode is shown in the figure. The ratio of forward to reverse bias resistance is:

A metallic sphere is placed in a uniform electric field. The line of force follow the path (s) shown in the figure as

A large number of liquid drops each of radius r coalesce to from a single drop of radius R. The energy released in the process is converted into kinetic energy of the big drop so formed. The speed of the big drop is (given, surface tension of liquid T, density $\rho$)

The horizontal component of the earth?s magnetic field is $3.6 \times 10^{-5}$ tesla where the dip angle is $60^{\circ}$. The magnitude of the earth?s magnetic field is

In the given circuit the reading of voltmeter $V_1$ and $V_2$ are $300$ volt each. The reading of the voltmeter $V_3$ and ammeter $A$ are respectively