List of practice Questions

The acute angle between the line \[ \vec{r} = (i + 2j + k) + \lambda (i + j + k) \] and the plane \[ \vec{r} \cdot (2i - j + k) = 5 \] is
With usual notations in \( \triangle ABC \), \(a = 3\), \(c = 2\) and \(\sin C = \dfrac{2}{3}\), then \(\angle A =\)
Which of the following equations has $\Delta_f H^\circ$ and $\Delta H^\circ$ same ?
Separation of Acetone and Benzene from their mixture is carried out by
Which gas among the following contains maximum number of molecules at STP ?
(Molar masses in g mol$^{-1}$: CO$_2$ = 44, Ar = 39.9, CH$_4$ = 16, O$_2$ = 32)
How many isomers of monobromoderivatives are obtained on bromination of the following compound ?
When soap is added on an oily part of cloth, the hydrocarbon part of soap dissolves in
Which of the following compounds on heating with potassium permanganate and dilute sulphuric acid forms adipic acid ?
Which of the following oxyacid of sulphur contain both S=S and S=O bonds ?
When one mole of lactose is hydrolysed, the hydrolysate contains
Which of the following compounds is obtained when quaternary ammonium hydroxide is strongly heated ?
What is the formula of lithium imide?
How many hydroxy groups are present in hydroxyquinol?
Which oxide formation according to Ellingham diagram shows a graph with sudden change in slope?
How many lone pair of electrons are present on chlorine atom in chlorous acid ?
What is the percentage of void space in bcc type of unit cell?
Identify addition polymer from following
Identify the correct statement from following
Identify the ore of magnesium from following ?
Which of the following is a solid trimer of formaldehyde?
What is the number of carbon atoms in alkanes found in diesel?
I.U.P.A.C. name of the following compound is
Identify product ‘C’ in following reaction
\[ \mathrm{C_2H_5OH \xrightarrow[\text{Pyridine}]{SOCl_2} A \xrightarrow{C_2H_5ONa} B \xrightarrow[\Delta,\ Pressure]{dil.\ H_2SO_4} C} \]
Sodium salt of $\alpha$-halogen carboxylic acid when heated with sodium nitrite and followed by hydrolysis forms
Which among the following orbitals form Delta ($\delta$) molecular orbitals?