In the Group analysis of cations, Ba²⁺ & Ca²⁺ are precipitated respectively as
In the Group analysis of cations, Ba²⁺ & Ca²⁺ are precipitated respectively as Q. In the Group analysis of cations, […]
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Consider the following gaseous equilibrium in a closed container of volume ‘V’ at T (K). P₂(g) + Q₂(g) ⇌ 2PQ(g) 2 moles each of P₂(g), Q₂(g) and PQ(g) are present at equilibrium. Now one mole each of ‘P₂’ and ‘Q₂’ are added to the equilibrium keeping the temperature at T (K). The number of moles of P₂, Q₂ and PQ at the new equilibrium, respectively, are
Consider the following gaseous equilibrium in a closed container of volume V at T (K). P2 + Q2 ⇌ 2PQ.
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The heat of atomisation of methane and ethane are ‘x’ kJ mol⁻¹ and ‘y’ kJ mol⁻¹ respectively. The longest wavelength (λ) of light capable of breaking the C–C bond can be expressed in SI unit as :
The heat of atomisation of methane and ethane are x kJ mol−1 and y kJ mol−1 respectively. The longest wavelength
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Two liquids A and B form an ideal solution at temperature T K. At T K, the vapour pressures of pure A and B are 55 and 15 kN m⁻² respectively. What is the mole fraction of A in solution of A and B in equilibrium with a vapour in which the mole fraction of A is 0.8
Two liquids A and B form an ideal solution at temperature T K. At T K, the vapour pressures of
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Choose the INCORRECT statement
Choose the INCORRECT statement Q. Choose the INCORRECT statement (A) Carbon exhibits negative oxidation states along with +4 and +2.
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Statement I : Cross aldol condensation between two different aldehydes will always produce four different products. Statement II : When semicarbazide reacts with a mixture of benzaldehyde and acetophenone under optimum pH, it forms a condensation product with acetophenone only.
Given below are two statements related to aldol condensation and semicarbazide reaction. Choose the correct option. Q. Given below are
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The correct order of C, N, O and F in terms of second ionisation potential is
The correct order of C, N, O and F in terms of second ionisation potential is Q. The correct order
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At 298 K, the mole percentage of N₂ (g) in air is 80%. Water is in equilibrium with air at a pressure of 10 atm. What is the mole fraction of N₂ (g) in water at 298 K ? (Kₕ for N₂ is 6.5 × 10⁷ mmHg)
At 298 K, the mole percentage of N2 (g) in air is 80%. Water is in equilibrium with air at
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The number of possible tripeptides formed involving alanine (ala), glycine (gly) and valine (val), where no amino acid has been used more than once is:
The number of possible tripeptides formed involving alanine, glycine and valine, where no amino acid has been used more than
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Find out the statements which are not true. A. Resonating structures with more number of covalent bonds and lesser charge separation are more stable. B. In electromeric effect, an unsaturated system shows +E effect with nucleophile and −E effect with electrophile. C. Inductive effect is responsible for high melting point, boiling point and dipole moment of polar compounds. D. The greater the number of alkyl groups attached to the doubly bonded carbon atoms, higher is the heat of hydrogenation. E. Stability of carbanion increases with the increase in s–character of the carbon carrying the negative charge.
Find out the statements which are not true. Q. Find out the statements which are not true. A. Resonating structures