List of practice Questions

Case – Payal: Obtained MBBS and M.S. Practised 5 years in native village (local language known). Plans to go abroad after 4 more years in India. All exams >60% (SSC to M.S.). Ready for 3-year service bond.
Look carefully for the pattern, and then choose which pair of numbers comes next.
28 25 5 21 18 5 14 _ _ _ _
The given chemical complex (III) is formed by combining the following ions: (i) what is the charge on the complex? (The structure of the complex is not provided.)
For the given organic reaction, which of the following is the correct product formed when R' = CH\(_3\), R'' = CH\(_2\)CH\(_3\)?
The following reaction occurs: \[ C_6H_6 + X \xrightarrow{\text{Reagents}} Y + Z \] What are the compounds \( X \), \( Y \), and \( Z \)?
What is the pKa value of the given compound?
Which form of RNA plays a key role in protein synthesis?
Which of the following compounds can act as a base?
Which of the following is the correct relation for \( A_m \)?
What is the relation between \( \Delta G \) and \( E_{\text{cell}} \)?
For a reaction with a rate constant \( k = 10^{-3} \), how long will it take for the reaction to reach 100% completion?
The half-life of a radioactive substance is 5730 years. If carbon-14 decays and only 80% of it remains after a certain period, what is the time elapsed (in years)?
What is the oxidation state of Mn in the compound MnO\(_4^{2-}\)?
If an object moves with a velocity of 1 km/s and has a mass of 0.033 kg, calculate the de Broglie wavelength of the object.
If the electric field between the plates of a capacitor with charge \( 2q \) is \( E \), then what will the electric field be when the capacitor is connected to a battery with a voltage \( E \) across the plates?
In the circuit shown, the total resistance of the series combination is 0.5Ω. If a potential difference of 15V is applied, calculate the total potential across the combination of the series connected resistors.
In the diagram of two point charges \( +q \) and \( -q \), the potential at point A is given by the formula. Calculate the potential at point A if the distance between the charges is \( 2l \).
For a resistor \( R \), the potential across it is given by \( 1.6 \times 10^{-6} \, \text{C} \) of charge and a voltage across it. The electrical potential due to this charge will depend on:
In a circuit with resistors and a voltage of \( V \), if a new resistor is added to the series combination, what will be the new potential?
In the circuit shown, what is the voltage at point \( P \)?
What are the dimensions of the thermal conductivity coefficient \( k \) (SI units)?
Find the value of $ \sin 75^\circ \cos 15^\circ + \cos 75^\circ \sin 15^\circ $.
The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet color in non-luminous flame under hot condition in borax bead test is:
The maximum covalency of a non-metallic group 15 element 'E' with the weakest E-E bond is:
Given below are two statements:
Statement I: Like nitrogen that can form ammonia, arsenic can form arsine.
Statement II: Antimony cannot form antimony pentoxide.
In the light of the above statements, choose the most appropriate answer from the options given below: