List of practice Questions

A force \(F = (10 + 0.5x)\) N acts on a particle in the x-direction. The work done by the force in displacing the particle from \(x = 0\) to \(x = 2\) m is
A stone of mass \(2\,\text{kg}\) attached at one end of a \(2\,\text{m}\) long string is whirled in a horizontal circle. The string makes an angle of \(45^\circ\) with the vertical. Then the centripetal force acting on the stone is (\(g = 10\,\text{m s}^{-2}\), \(\tan 45^\circ = 1\))
For a transistor \( \dfrac{1}{\alpha_{dc}} - \dfrac{1}{\beta_{dc}} \) is (\(\alpha_{dc}\) and \(\beta_{dc}\) are current gains)
For the following combination of logic gates, when all the three inputs are first high and then low, the output \(Y\) will respectively be
When a ray of light is incident normally on one refracting surface of an equilateral prism of refractive index \(1.5\), the emerging ray \([\sin^{-1}(1/1.5)=41.8^\circ]\)
In gas phase, the H–O–O–H dihedral bond angle in H\(_2\)O\(_2\) is
For combustion of 1 mole of liquid benzene at 298 K, the heat of reaction at constant volume is –3264.2 kJ. What is the heat of combustion at constant pressure?
(\(R = 8.314\ \text{J K}^{-1}\text{ mol}^{-1}\))
Which of the following compound is a broad spectrum antibiotic?
What is the product obtained when ethylamine is heated with large excess of ethyl iodide?
If same amount of each of the following four gases expand from volume \(V_1\) to \(V_2\), maximum work done is observed in expansion of
\(15 \times 10^{-3}\) kg urea is dissolved in 1 litre of water and it is isotonic with 500 mL aqueous glucose solution. What is the amount of glucose present in solution?
(Atomic mass: C = 12, H = 1, O = 16, N = 14)
According to Werner’s theory, based on experiment the formula of coordination compound is CoCl\(_3\)\(\cdot\)3NH\(_3\). Then the molar conductance in mho mol\(^{-1}\) and number of Cl\(^{-}\) ions precipitated by AgNO\(_3\) respectively is
EMF of a cell having the following cell reaction at 298 K is 0.059 V.
Zn(s) + 2H\(^+\)(aq) $\rightarrow$ Zn\(^{2+}\) + H\(_2\)(g)
What is the value of \(\Delta G\)?
What is the oxidation number of carbon in K\(_2\)C\(_2\)O\(_4\)?
Which enzyme catalyses the reaction of CO\(_2\) with water in human body?
α–halogenation of carboxylic acid is called
What is the time required to deposit one millimole of aluminium by passage of 9.65 ampere through aqueous solution of aluminium ions?
Mass of unit cell of an element is \(4.15 \times 10^{-24}\) g. If edge length of unit cell is \(3.50 \times 10^{-8}\) cm, what is the density of element?
What type of hybridization is observed in interhalogen compounds of the type XX\(_3\)?
Which antibiotic from the following contains N = N linkage?
A solution has an osmotic pressure of X kPa at 300 K having one mole of solute in \(10.5\ \text{m}^3\) of solution. If its osmotic pressure is reduced to \(\frac{1}{10}\) of its initial value, what is the new volume of solution?
Which of the following pairs of moving phase and stationary phase respectively is correct for column chromatography?
What type of hybridization results in trigonal geometry?
Identify the product obtained when phenol is treated with bromine water.
Which of the following polymers contain ester linkage?