List of practice Questions

Velocity constant (k) for a reaction is \(2.3 \times 10^{-5} \, L \, mol^{-1} s^{-1}\). Order of the reaction will be:
The base not present in RNA is:
Cannizzaro’s reaction is exhibited by:
Carbylamine reaction gives:
Calculate the packing capacity (efficiency) of a simple cubic lattice.
The structure of a cell of an element is body-centred cubic (bcc). The length of the core of the cell is 200 pm. Density of the element is 7 g/cm\(^3\). Determine the number of atoms in 20 g element.
Give answers: (i) Why does the conductivity of any solution decrease with dilution?
(ii) Conductivity of 0.20 M KCl solution at 298 K is 0.248 S cm\(^{-1}\). What will be its molar conductivity?
Initial concentration of N\(_2\)O\(_5\) in a first-order reaction was \(1.24 \times 10^{-2}\) mol L\(^{-1}\) at 310 K, which remained \(0.20 \times 10^{-2}\) mol L\(^{-1}\) after 30 minutes. Calculate velocity constant at 310 K. \((\log_{10} 6.2 = 0.7924)\)
What happens when (Give chemical equations only): (i) Acetaldehyde reacts with dilute NaOH:
Write short notes on the following: (i) Kolbe Electrolysis:
The solid which is electrical conductor, ductile and tensile, is called:
In a 200 g solution of glucose with 10% mass per cent, amount of glucose will be:
What happens when (give chemical equations only): (i) Concentrated H\(_2\)SO\(_4\) is added in calcium fluoride?
(ii) SO\(_3\) is passed in water?
(iii) Calcium hydroxide reacts with ammonium chloride?
(iv) Concentrated sulphuric acid and copper metal is heated?
(v) Chlorine gas is passed in cold caustic soda solution?
Describe the method of preparation of dinitrogen in the laboratory and also write the chemical equations of the reactions. Write the reactions of dinitrogen with (i) oxygen and (ii) magnesium at high temperature. What is its reaction with hydrogen in presence of catalyst at 773 K temperature?
Write IUPAC names of the following: (i) CH\(_3\)CH = CH-CH\(_3\) Br
(ii) (CH\(_3\))\(_3\)-C-CH\(_2\)(Br)
(iii) CH\(_3\)CH\(_2\)-C-CH(Cl)CH\(_2\)CH\(_3\)
(iv) (CH\(_3\))\(_2\)CBrCH\(_2\)CH\(_3\)
(v) (CH\(_3\))\(_3\)Cl
Give chemical equation for the following reactions: (i) Oxidation of propan-1-ol with alkaline KMnO\(_4\):
How can the following changes be done? (Give chemical equations only) (i) Propan-1-ol from ethyl magnesium chloride:
Write short notes on the following: (i) Tyndall Effect
(ii) Brownian Movement
(iii) Coagulation
Write the structural formula of fructose. How is it different from the structure of glucose?
Give a chemical test for differentiating the following couple of compounds: (i) Secondary and Tertiary Amines
(ii) Methyl Amine and Dimethyl Amine
(iii) Ethylamine and Aniline
What do you understand by elevation in boiling point? Boiling point of a liquid is 350 K. On dissolving 2.0 g of a non-volatile solute in 100 g liquid, the boiling point of solution becomes 350.50 K. Calculate the molar mass of the solute. \( K_b \) for the liquid is 2.50 K kg mol\(^{-1}\).
What do you understand by order of reaction? What is the difference between the first order and zero order reaction? Following data was obtained on first order thermal decomposition of \(N_2O_5\) (g) at fixed volume: 2N\(_2\)O\(_5\) (g) \(\rightarrow\) 2N\(_2\)O\(_4\) (g) + O\(_2\) (g)
What are transition elements? Write the names and electronic configuration of the elements of the first transition series. Transition metals and their maximum compounds are paramagnetic. Explain.
Write the formulas of the following coordination compounds: (i) Tetracarbonyl nickel (0)
(ii) Dichlorobis(ethan-1, 2-diamine) cobalt(III) chloride
(iii) Pentamine carbonato cobalt(III) chloride
(iv) Tetramine aquachloro cobalt(III) chloride
Explain the following defects: (i) Interstitial
(ii) F-centred