Quick Chemistry Evaluation

One mole of CO₂ contains

Quantum numbers of an atom can be defined on the basis of

Which of the following is a stable ion?

Which of the following is a planar?

If 200 mL of gas at 27°C is cooled to 7°C at constant pressure, its final volume will be

The bond dissociation energies of H₂, Cl₂ and HCl are 104, 58, and 103 kcal mol⁻¹ respectively. The enthalphy of formation of HCl would be

HSO₄⁻ + OH⁻ → SO₄²⁻ + H₂O. which is correct about conjugate acid – base pair

The oxidation state of Cr in K₂Cr₂O₇ is

The type of hybridisation of boron in diboron is

The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is

Ethyl iodide when heated with sodium in dry ether gives pure

The basic component of the smog is

When 25g of Na₂SO₄ is dissolved in 10³ kg of solution,its concentration will be

Specific conductance of 0.1 M sodium chloride solution is 1.06 ˣ 10⁻² ohm⁻¹ cm⁻¹. Its molar conductance in ohm⁻¹ cm² mol⁻¹ is

The absorption of hydrogen by palladium is called

MnO₂ and H₂O added to Nacl, the greenish-yellow gas liberate is

Which ion is detected by Nessler’s reagent

Which of the following paramagnetic

When CHCl₃ is boiled with NaOH, it gives

Picric acid is

Acetone reacts with iodine to form iodoform in the presence of

When aniline is treated with sodium nitrite and hydrochloric acid at 0⁰C, it gives

The base present in DNA, but not RNA is

Which of the following is a hypnotic