List of practice Questions

Paper chromatography is an example of:

Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as:
Sucrose on hydrolysis gives
The calculated spin only magnetic moment of $Cr^{2+}$ ion is :
The half-life for a zero order reaction having $0.02\, M$ initial concentration of reactant is $100\, s$. The rate constant (in $mol \,L^{-1} s^{-1})$ for the reaction is
The minimum pressure required to compress $600 \,dm^{3}$ of a gas at $1$ bar to $150\, dm^{3}$ at $40^{\circ}C$ is
The mixture which shows positive deviation from Raoult’s law i s :
The number of angular nodes and radial nodes in $3s$ orbital are
The number of Faradays(F) required to produce 20g of calcium from molten $CaCl_2$ (Atomic mass of $CaCl_2$ g $mol^{-1}$) is :
The rate constant for a first order reaction is $4.606 \times 10^{-3} s^{-1}$. The time required to reduce $2.0\,g$ of the reactant to $0.2\,g$ is :
Urea reacts with water to form $A$ which will decompose to form $B$. $B$ when passed through $Cu^{2+}(aq)$, deep blue colour solution C is formed. What is the formula of C from the following
What is the change in oxidation number of carbon in the following reaction? 
\(CH_4(g) + 4Cl_2 (g) \rightarrow CCl_4(l) + 4HCl (g)\)
What is the role of gypsum, $CaSO_{4}.2H_{2}O$ in setting of cement ? Identify the correct option from the following :
Which of the following alkane cannot be made in good yield by Wurtz reaction ?
Which of the following is a basic amino acid ?
Which of the following is a natural polymer?
Which of the following is cationic detergent?
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?
Which of the following oxoacid of sulphur has -O-O- linkage?
Which of the following set of molecules will have zero dipole moment?
Which one of the followings has maximum number of atoms ?
A $40\, \mu\,F$ capacitor is connected to a $200\,V$,$50\,Hz$ ac supply. The rms value of the current in the circuit is, nearly :
A ball is thrown vertically downward with a velocity of 20m/s from the top of a tower. It hits the ground after some time with a velocity of 80m/s. The height of the tower is : (g = $10m/s^2$)
A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth?
A long solenoid of $50\,cm$ length having $100\,turns$ carries a current of $2.5\,A$. The magnetic field at the centre of the solenoid is : $(\mu_o = 4\pi \times 10^{-7} T\,m\,A^{-1})$