List of top Chemistry Questions

A container contains equal masses of H$_{2}$, He, CO$_{2}$ and Ne at a certain temperature. Which of the following gases exerts minimum partial pressure?

Which from following metal nanoparticle is used for coating the filter material that acts as effective bacterial disinfectant?

Which of the following compounds has difficulty in breaking of C $-$ X bond?

What type of colloid is fog?

Which of the following elements has highest electronegativity?

For a reaction, \( NH_{4}NO_{2} \rightarrow N_{2} + 2H_{2}O \). Which from following phenomena is true regarding nitrogen?

Which among the following salts forms basic solution when dissolved in water?

Find the number of millimoles for 0.160 g sodium hydroxide.

Which from following is nonconductor of electricity?

Identify the alkyne formed by reaction of calcium carbide with water?

Identify the major product formed in the following reaction. Chlorobenzene \( \xrightarrow[\text{Anhydrous FeCl}_{3}]{\text{Cl}_{2}} \) Product}

Which of the following compounds has lowest solubility in water?

Which of the following is structural formula of mesityl oxide?

Calculate the standard enthalpy change for synthesis of ammonia gas from following data. i. \( 2H_{2(g)} + N_{2(g)} \rightarrow N_{2}H_{4(g)} \); \( \Delta_{r}H^{\circ}_{1} = 95.4\text{ kJ} \) ii. \( N_{2}H_{4(g)} + H_{2(g)} \rightarrow 2NH_{3(g)} \); \( \Delta_{r}H^{\circ}_{2} = -187.6\text{ kJ} \)}

Calculate the cryoscopic constant of solvent if depression in freezing point of 0.4 m solution of nonvolatile solute is 1.8 K .

Calculate the volume of bcc unit cell if radius of an atom present in it is \( 1.86 \times 10^{-8} \) cm.

What is the value of spin only magnetic moment for \( Mn^{2+} \) in BM?

Identify acidic amino acid from following list represented by three letter symbols.

What is EAN of Co in \( [Co(NH_{3})_{6}]^{3+} \)?

Which from following statements is true regarding the cell emf at 298 K for \( \ominus Ni_{(s)} | Ni^{+2}(0.01M) || Ag^{+}(0.01M) | Ag_{(s)} \oplus \)?

Which of the following interhalogen compounds is in liquid state at room temperature?

Rate law for the reaction, \( NO_{2(g)} + CO_{g} \rightarrow NO_{(g)} + CO_{2(g)} \) is as \( R = k[NO_{2}]^2 \). What is the order of reaction w.r.t. CO?

The pH of monoacidic base is 10. Calculate its percentage dissociation in 0.01 M solution at 298 K ?

How many chiral carbon atoms are present in 2-chloro-3,4,5-trimethylhexane?