List of top Chemistry Questions

Water is often treated with chlorine to

Volume strength of $ {H2O2}$ is 11.2. Calculate strength in g/L.

Vitamin $B_6$ is known as

Volatile nature of halogens is because

Vinyl alcohol and ethanal are

Victor Meyers test is not given by

Variation of heat of reaction with temperature is known as

Vapour pressure of a solution containing non-volatile solute is

Vapour density of an organic compound is 23. It ontains 52.17% of carbon and 13% of hydrogen. The compound gives iodoform test. The compound is :

Vanishing cream is an example of

Van Arkel method of purification of metals involves converting the metal to

Value of universal gas constant R depends upon

Using the standard electrode potential, find out the pair between which redox reaction is not feasible. $E^{\circ}$ values : $Fe^{3+}/Fe^{2+} = + 0.77; I_{2\left(s\right)}/I^- = + 0.54$; $Cu^{2+}/Cu = + 0.34$; $Ag^{+}/Ag = + 0.80\, V$

Unit of ionic mobility is

Tyndall effect would be observed in a

Tyndall phenomena is exhibited by

Tyndall effect in colloidal solutions is due to :

Tyndall effect is not observed in

Tyndall effect is observed

Two values of spin quantum numbers i.e., $+1/2$ and $- 1/2$ represent

Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. $\Lambda_{m}$ of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y?

Two oxides of a metal contain 27.6% and 30.0% of oxygen respectively. If the formula of the first oxide is $M_3O_4$, then second one is

Two metals $X$ and $Y$ belong to the second group of periodic table. $X$ forms insoluble oxide but soluble sulphate. $Y$ forms a soluble oxide but insoluble sulphate. Hydroxide of metal $X$ is soluble in $NaOH$ while that of metal $Y$ is insoluble in $NaOH$. What are metals $X$ and $Y$ ?

Two members of a homologous series have

Two litres of gas are maintained at 25$^\circ$C and two atmospheric pressure. If the pressure is doubled and absolute temperature is halved, the gas willnow occupy