List of practice Questions

A ray of light strikes a plane mirror at an angle of incidence \(30^\circ\). What is the angle between the incident ray and the reflected ray?
Two point charges \(+2 \, \mu\text{C}\) and \(-2 \, \mu\text{C}\) are placed 0.1 m apart in air. What is the electrostatic force between them?
The energy of a photon is \(6.6 \times 10^{-19} \, \text{J}\). What is the frequency of the photon?
(Take Planck’s constant \(h = 6.6 \times 10^{-34} \, \text{Js}\))
A gas expands from volume \(V\) to \(2V\) at constant pressure \(P\). What is the work done by the gas?
How many moles are present in \(44\, \text{g}\) of \(CO_2\)?
(Molar mass of \(CO_2 = 44\, \text{g/mol}\))
Which of the following elements has the smallest atomic radius?
Which of the following is the major product of the reaction between 1-bromobutane and potassium hydroxide in ethanol?
For a first-order reaction, the rate constant is \(k = 0.01 \, \text{s}^{-1}\). What is the half-life of the reaction?
Which of the following is a characteristic of a coordination compound?
What is the standard electrode potential of a half-reaction in which electrons are transferred from \(Ag^+\) to \(Ag\)?
A particle moves with a constant speed of 4 m/s in a circular path of radius 2 m. What is its centripetal acceleration?
A capacitor of capacitance 5 \(\mu\)F is charged to 100 V and then connected to an uncharged capacitor of 2 \(\mu\)F. What is the final potential difference across the capacitors?
Which of the following gases has the highest rate of diffusion?
If the roots of the quadratic equation \( x^2 - 6x + k = 0 \) are real and distinct, what is the range of values for \( k\)?
What is the value of \( \int_0^{\pi/2} \sin x \cos x \, dx\)?
A body of mass 2 kg is moving with a velocity of 10 m/s. What is its kinetic energy?
Which of the following elements has the highest electronegativity?
If \( \sin \theta + \cos \theta = \sqrt{2} \), what is the value of \( \sin \theta \cos \theta \)?
A simple pendulum of length 1 m is oscillating with an amplitude of 0.1 m. What is the maximum tension in the string if the mass of the bob is 0.2 kg? (Assume \( g = 10 \, \text{m/s}^2 \))
What is the sum of the first 10 terms of the arithmetic progression with first term 3 and common difference 2?
Choose the word closest in meaning to 'Candid'.
A sequence is defined as follows: \( a_1 = 1, a_2 = 2 \), and \( a_n = a_{n-1} + a_{n-2} \) for \( n \geq 3 \). What is the 6th term of the sequence?
Which of the following compounds has the highest boiling point?
The pH of a solution is 3. What is the concentration of hydrogen ions in this solution?
If the roots of the quadratic equation \( 2x^2 - 5x + k = 0 \) are real and distinct, what is the range of values for \( k \)?