List of practice Questions

The hydride ion $H^-$ is stronger base than its hydroxide ion $OH^-$. Which of the following reactions will occur if sodium hydride (NaH) is dissolved in water?
The genetic material of bacteria is present as:
The formula dichlorobis (urea) copper (II) is
The food in onion is stored in the form of:
The focal length of converging lens is measured for violet, green and red colours. It is respectively $f_v , f_g, f_r $ We will get
The dimensional formula of Planck's constant is
The core metal of chlorophyll is
Preparation of sperm before penetration of ovum is
The concentration of reactants is increased by x. then equilibrium constant K becomes
Which of the following 0.10 m aqueous solution will have the lowest freezing point ?
Of the following $0.10\,m$ aqueous solutions, which one will exhibit the largest freezing point depression?
Molar conductivities $(\Lambda^{\circ}_m)$ at infinite dilution of $ { NaCl, HCl}$ and $ {CH3COONa }$ are $126.4, 425.9 $ and $ {91.0 \, S\, cm^2 \, mol^{-1}}$ respectively. $(\Lambda^{\circ}_m)$ for $ {CH3COOH}$ will be:
A process for converting a precipitate into a colloidal solution is known as
Name the compound $ {{O}_{2}}Pt{{F}_{6}} $ .
A gas has a volume of 15 ml at 300 K and 740 mm of Hg. Find the temperature if volume becomes 10 ml at 760 mm pressure of Hg.
Which is the correct decreasing order of bond angle in the following series?
Which profile is a true representation of chemosorption?
Malachite is a mineral of
In the nuclear reactions, there is a conservation of
In a coil of self-inductance $5$ henry, the rate of change of current is $2$ ampere per second. The e.m.f. induced in the coil, is
If $???? is stress and $???? is Young?? modulus of a wire material, then energy stored in the wire per unit volume, is
How much amount of oxygen is present in one gram of haemoglobin?
Genes present on Y-chromosome are called
Electron volt (eV) is the unit of
During melting process, the heat given to a body is utilised in