Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of
Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of […]
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Given below are two statements : Statement I : The second ionisation enthalpy of Na is larger than the corresponding ionisation enthalpy of Mg. Statement II : The ionic radius of O²⁻ is larger than that of F⁻. In the light of the above statements, choose the correct answer from the options given below.
Second ionisation enthalpy of Na and Mg and ionic radius of O2− and F− Q. Given below are two statements
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Given below are two statements : Statement I : (CH₃)₃C⁺ is more stable than CH₃⁺ as nine hyperconjugation interactions are possible in (CH₃)₃C⁺. Statement II : CH₃⁺ is less stable than (CH₃)₃C⁺ as only three hyperconjugation interactions are possible in CH₃⁺. In the light of the above statements, choose the correct answer from the options given below.
Given below are two statements about stability of carbocations and hyperconjugation Q. Given below are two statements : Statement I
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Iodoform test can differentiate between A. Methanol and Ethanol B. CH₃COOH and CH₃CH₂COOH C. Cyclohexene and cyclohexanone D. Diethyl ether and Pentan-3-one E. Anisole and acetone Choose the correct answer from the options given below :
Iodoform test can differentiate between Methanol and Ethanol Cyclohexene Cyclohexanone Anisole Acetone Q. Iodoform test can differentiate between A. Methanol
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The work functions of two metals (M_A and M_B) are in the 1 : 2 ratio. When these metals are exposed to photons of energy 6 eV, the kinetic energy of liberated electrons of M_A : M_B is in the ratio of 2.642 : 1. The work functions (in eV) of M_A and M_B are respectively.
The work functions of two metals are in the 1 : 2 ratio and kinetic energy ratio question Q. The
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Observe the following reactions at T(K). I. A → products. II. 5Br⁻(aq) + BrO₃⁻(aq) + 6H⁺(aq) → 3Br₂(aq) + 3H₂O(l) Both the reactions are started at 10.00 am. The rates of these reactions at 10.10 am are same. The value of − Δ[Br⁻]/Δt at 10.10 am is 2 × 10⁻⁴ mol L⁻¹ min⁻¹. The concentration of A at 10.10 am is 10⁻² mol L⁻¹. What is the first order rate constant (in min⁻¹) of reaction I ?
Observe the following reactions at T(K). A → products and 5Br⁻ + BrO₃⁻ + 6H⁺ reaction rate question Q. Observe
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In Carius method 0.2425 g of an organic compound gave 0.5253 g silver chloride. The percentage of chlorine in the organic compound is
In Carius method 0.2425 g of an organic compound gave 0.5253 g silver chloride. The percentage of chlorine in the
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The oxidation state of chromium in the final product formed in the reaction between KI and acidified K₂Cr₂O₇ solution is :
The oxidation state of chromium in the final product formed in the reaction between KI and acidified K₂Cr₂O₇ solution is
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Which of the following statements are TRUE about Haloform reaction? A. Sodium hypochlorite reacts with KI to give KOI. B. KOI is a reducing agent. C. α, β-unsaturated methyl ketone (CH3–CH=CH–CO–CH3) will give iodoform reaction. D. Isopropyl alcohol will not give iodoform test. E. Methanoic acid will give positive iodoform test.
Which of the following statements are TRUE about Haloform reaction? Q. Which of the following statements are TRUE about Haloform
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A ball of radius r and density ρ dropped through a viscous liquid of density σ and viscosity η attains its terminal velocity at time t, given by t = A ρ^a r^b η^c σ^d, where A is a constant and a, b, c and d are integers. The value of (b + c)/(a + d) is ____.
A ball of radius r and density ρ dropped through a viscous liquid of density σ and viscosity η attains