List of top Chemistry Questions

At 1000 K, the value of $K_c$ for the below reaction is $10 \text{ mol L}^{-1}$. Value of $K_p$ (in atm) is (given $R = 0.082 \text{ atm L mol}^{-1} \text{K}^{-1}$)
${\{A(g) <=> B(g) + C(g)}$

Which of the following pairs form a precipitate of AgCl? 
(v) 1L of $10^{-5}~\text{M}$ NaCl is common. Test combinations with: $10^{-6}$ $M {AgNO_3} $

In which of the following reactions is ${H_2O}$ oxidized?
I. Photosynthesis
II. ${H_2O + F_2}$
III. ${H_2O + H_2}$
IV. ${H_2O + P_4O_{10}}$

Which of the following statements are correct?
LiF is less soluble in water
NaCl is less ionic than CsCl
Formation of alkali metal halide is an endothermic reaction

Which one of the following is correct?
Thermodynamically most stable allotrope of carbon is

What are X, Y in the following reaction sequen?

Which of the following reactions are not feasible?

Silver forms CCP structure and its density is $10.5~\text{g/cm}^3$. What is the edge length of the unit ll? (Molar mass of silver is $107.9~\text{g/mol}$)

What is the boiling point of solution of 0.1 m KCl? 
K$_b$ of water is 0.52 K kg mol$^{-1}$, $\alpha = 100%$ (water boils at 373 K)

The molarity of the solution when 4.9 g of H$_2$SO$_4$ is dissolved in 250 mL of solution is

Which of the following is correct with respect to the graph given?
[R] = Conntration at time 't' 
[R]$_0$ = Initial conntration 

Some statements about Leclanche ll are:
Anode is zinc metal
Cathode is graphite rod surrounded by powdered {MnO2} and carbon
Electrolyte is a moist paste of ZnO and KOH
Oxidation product is ZnO

Match the following

List – I

(Dispersed Phase – Dispersion medium)

A) Solid – Liquid

B) Liquid – Liquid

C) Solid – Gas

D) Liquid – Solid

List – II

(Type of colloid)

I) Gel

II) Aerosol

III) Sol

IV) Emulsion

The correct answer is

S-I: Scattering of light by dispersed particles of colloidal system is known as Tyndall effect.
S-II: The diameter of the dispersed particles should not be much smaller than the wavelength of the light used.
The metal purified by Mond pross is X and metal purified by van Arkel method is Y. X and Y respectively are:
Manganese dioxide on heating with conntrated hydrochloric acid gives a greenish yellow gas, X. With exss of ammonia X gives Y and Z. Y and Z respectively are
The spin-only magnetic moment of ${[MnBr4]^2-}$ is 5.9 BM. The geometry of the complex and x respectively are

Which of the following are correct? 
i. V$^{2+}$ liberates hydrogen from a dilute acid
ii. The earlier members of lanthanide series behave more like aluminium 
iii. The ‘silver’ UK coins are made of CuNi alloy 
iv. The maximum oxidation state exhibited by Neptunium is +7

Identify the correct statement with respect to high-density polythene
Which of the following correctly represents hydrogen bonded pairs in DNA?
In D-glucose and D-fructose, which OH participates in hemiatal/hemiketal formation?
The bond angle is maximum in which of the following molecules?
Which of the following shows the maximum number of geometrical isomers?
The IUPAC name of \([Co(NH_3)_5ONO]Cl_2\) is: