List of practice Questions

Morphine obtained from opium is
What is the value of inductance L for which the current is a maximum in a series LCR circuit with $ C=10\mu F $ and $ \omega =1000\,{{s}^{-1}} $ ?
Three point charges $ +\,q,-2q $ and $ +q $ are placed at points $ (x=0,y=a,z=0), $ $ (x=0,y=0,z=0) $ and $ (x=a,y=0,z=0), $ respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are
The change in entropy for the fusion of $1$ mole of ice is [mp of ice = $273\, K$, molar enthalpy of fusion for ice $ = 6.0\,kJ\,mol^{-1} $ ]
Total volume of atoms present in a face centred cubic unit cell of a metal is ($r$ is atomic radius)
Methanol and ethanol are miscible in water due to
Metals have
Methanol and ethanol are miscible in water due to
Meselson and Stahl experiment proved
Meristematic tissue in vascular bundle is
Mercury is a liquid metal because
Masses $m$ and $M$ on pulley move $0.6\, m$ in $4\, s$. What is ratio of $ \frac{m}{M} $ ?
Male gamete in angiosperm is produced by
Ligament is mainly made up of
Iodine is obtained from
In which of the following fruit the edible part is the aril ?
In Ramsden eyepiece, the two planoconvex lenses each of focal length $ f $ are separated by a distance $ 12\,cm $ . The equivalent focal length (in $ cm $ ) of the eyepiece is
In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle will be a :
Identify the reaction for which $\Delta H\ne \Delta E.$
Hydrolysis of $NCl _{3}$ gives $NH _{3}$ and $X$. Which of the following is $X$ ?
Which of the following compounds when heated with $CO$ at $150^{\circ} C$ and $500$ atm pressure in presence of $BF _{3}$ forms ethyl propionate ?
Which of the products is formed when acetone is reacted with barium hydroxide solution?
When acetaldehyde is heated with Fehling solution, a red precipitate is formed. Which of the following is that?
What is the correct order of occurrence ($\%$ by weight) in air of $Ne , Ar$ and $Kr$ ?
A solution of an acid has $\left[ H ^{+}\right]=2 \times 10^{-5}$. Find out the concentration of $OH ^{-}$ions.