How many mole of electrons are required for the reduction of 1 mole of Cr3+ to Cr(s)?
Identify the use of Buna-S from following.
What is the intermediate product obtained in the preparation of phenol from aniline?
What is the quantity of sugar charcoal obtained when 34.2 g sugar is charred using required quantity of conc. sulphuric acid under ideal conditions?
Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (RH = 109677 cm–1)
Which is an oxidizing agent in following reaction? Fe(s) + Cu2+(aq) \(\to\) Fe2+(aq) + Cu(s)
Identify correct pair of properties of [Co(NH3)6]3+ complex ion.
Identify anionic complex from following
Which from following is an example of multimolecular colloid?
Calculate the pressure of gas if the solubility of gas in water at 25°C is 6.85 x 10–4 mol.dm–3. (Henry’s law constant is 6.85 x 10–4 mol.dm–3.bar–1)
Which among the following amino acids is NOT synthesized in our body?
Identify the product Y in the following reaction
What is the relation between molar mass of solute and boiling point elevation of solution?
What is the pH of the solution containing 1.342 x 10–3 M H+ ions? (log 1.342 =0.1277)
The reagent used in Hofmann elimination reaction is
Half-life of first order reaction \(X \rightarrow Y + Z is 3 \text{ minutes.}\) What is the time required to reduce the concentration of X by 90% of its initial concentration?
Standard enthalpy of formation of water is \(-286\,\text{kJ mol}^{-1}\). When \( 1800\,\text{mg}\) of water is formed from its constituent elements in their standard states, the amount of energy liberated is
In the reaction 2\(\mathrm{N_2O_5(g)} \rightarrow 4\mathrm{NO_2(g)} + \mathrm{O_2(g)}, \)the rate of formation of\( \mathrm{NO_2(g)} and \mathrm{O_2(g)} \) are in the ratio
If a dilute solution of\( \mathrm{AgNO_3}\) is added to a dilute solution of excess \(\mathrm{NaI}\), then the species adsorbed on AgI colloidal particles is
The distance between electrodes of a conductivity cell is \(0.98\,\text{cm}\) and the area of cross-section is \(1.96\,\text{cm}^2\). What is the cell constant?
What is the bond order in \(\mathrm{N_2}\) molecule?
From the given reaction, \(\mathrm{N_2(g) + 3H_2(g) \rightarrow 2NH_3(g)},\ \Delta H = -92.6\,\text{kJ}, the enthalpy of formation of \mathrm{NH_3} is\)
Which among the following alkali metal elements is used as coolant in fast breeder nuclear reactors?
How many primary amines are possible for the molecular formula \(\mathrm{C_4H_{11}N}\,?\)
