List of practice Questions

Which of the following compounds will undergo racemisation when solution of KOH hydrolysis?

The reaction of aqueous KMnO₄ with H₂O₂ in acidic conditions gives:

Which one of the following is not a commoncomponent of Photochemical Smog?

Which of the following will be most stable diazoniumsalt RN²⁺X^- ?

Which of the following hormones is produced underthe condition of stress which stimulates glycogenolysis in the liver of human beings?

1.0 g of magnesium is burnt with 0.56 g O₂ in a closed vessel. Which reactant is left in excess and how much ?
(At. wt. Mg =24; O=16)

What products are formed when the following compound is treated with Br₂ in the presence of FeBr₃?

Which of the following organic compoundspolymerizes to form the polyester Dacron?

In acidic medium, H₂O₂ changes Cr₂O₇^2- to CrO₅ which has two (-O-O-) bonds. Oxidation state of Cr in CrO₅ is

Which of the following orders of ionic radii is correctly represented?

Which of the following salts will give highest pH in water ?

Which of the following will not be soluble in sodiumhydrogen carbonate?

For the reaction:
\(X_2O4(l) → 2XO_2(g)\)
△U = 2.1 k cal, △S = 20 cal K^–l at 300 K.
Hence △G is

In the following reaction, the product (A) is :

Using the Gibbs energy change, \(△G° = + 63.3\  kJ\), for the following reaction,
\(Ag_2CO_3 (g) ⇋ 2Ag+ (aq) + CO_3^{2–} (aq)\)
the \(K_{sp}\) of \(Ag_2CO_3 \)(s) in water at \(25°C\) is :
\((R = 8.314\ J K^{–1} mol^{–1})\)

Identify \(Z\) in the sequence of reactions:
\(CH_3CH_2CH=CH_2  \xrightarrow{HBr/H_2O_2}Y \xrightarrow{C_2H_5ONa}Z\)

In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 gm of sample neutralized 10 mL of 1 M H₂SO₄, The percentage of nitrogen in the soil is:

Which property of colloids isnot dependent on the charge on colloidal particles?

For a given exothermic reaction, K_p and K'_P are the equilibrium constants at temperatures T₁ and T₂, respectively. Assuming that heat of reaction is constant in temperature range between T₁ and T₂, it is readily observed that:

When 22.4 litres of H₂(g) is mixed with 11.2 litres of Cl₂ (g), each at S.T.P., the moles of HCl (g) formed is equal to :

Which one of the following is an example of a thermosetting polymer?

Which one is most reactive towards Nucleophilic addition reaction?

Calculate the energy in joule corresponding to light of wavelength 45 nm:
(Planck’s constant h = 6.63 × 10^-34 Js; speed of light c = 3 × 10⁸ ms^-1)

Which of the following organic compounds has same hybridization as its combustion product CO2 ?

\(Be^{2+}\) is isoelectronic with which of the following ions?