List of top Chemistry Questions

For the reaction taking place at certain temperature
NH₂COONH₄ (s) ⇌ 2NH₃ (g) +CO₂ (g)
If equilibrium pressure os 3X bar then Δ_tG° would be

The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol^-1, hence the energy of fourth Bohr orbit would be :

0.5 mole of each H₂, SO₂ and CH₄ are kept in a container. A hole was made in the container. After 3h, the order of partial pressures in the container will be

Monomer is

Following table represents critical temperature of some gases.
Arrange these gases in their increasing order of liquification

Gas	H2	He	N2	O2
Tc/K	33.2	5.3	126	154.3

The insecticide containing 99% γ -isomer of benzene hexachloride is know as

On adding AgNO³ solution into KI solution, a negatively charged colloidal sol is obtained when they are in :

Heavy water reacts respectively with CO₂, SO₃, P₂O₅ and N₂O₅ to give the compounds.

Which of the following transformation requires least energy ?

Among Al₂O₃, SiO₂, P₂O₅ and N₂O₅ to give the compounds :

[Cr(H₂O)₆]Cl₃ (atomic number of Cr=24) has a magnetic moment of 3.83 BM. The correct distribution of 3d-electrions in the chromium present in the complex is

In the first order reaction
2N₂O₅ → 4NO₂ + O₂. If a mol L^-1 is the initial concentration of N₂O₅, the concentration of NO₂ at time t will be

A atom form F.C.C. lattice with density d = 8.92 gm/ml and edge length a=3.6 × 10^-8 cm then find the molecular mass of atom in a.m.u. ?

Which of the following have maximum lattice energy :

Formula of plaster of paris :

Which of the following is the component of CsI₃ lattice :

Heating vitamin B₂ then colour will be :

Oxide ion form H.C.P. lattice & Al³⁺ Occupies \(\frac{2}{3}\) of octahedral void then find the formula of compound :

Which have Vont Hoff factor same as K₄[Fe(CN)₆] ?

If Molar conductivity of Ca²⁺ =119 & Molar conductivity of Cl^- = 71 then find the molar conductivity of CaCl₂ :

Find the concentration of glucose in blood which have osmotic pressure π = 7.7 atm at T = 25° C

The time required to complete 3/4th of first order reaction is 32 min. then find \(t_{\frac{1}{2}}\)

Which is amphoteric :

Favorable condition for product formation in the given reaction.
SO₂ + ½O₂ → SO₃ (g)

If 22 gm benzene Present in 100 gm CCl₄ then find the % W/W of benzene in solution :