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RNA and DNA are chiral molecules, their chirality is due to:
The catalytic activity of transition metals is due to:
The orbital angular momentum of an electron in a d-orbital is equal to:
Identify the incorrect statement from the following:
Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human beings?
Match List-I with List-II: **List-I (Quantum number)** (a) $n = 2, l = 1$ (b) $n = 3, l = 2$ (c) $n = 3, l = 0$ (d) $n = 2, l = 0$ **List-II (Orbital)** (i) 2s (ii) 3s (iii) 2p (iv) 3d Choose the correct answer from the options given below:
The value of electron gain enthalpy of $Na^+$, if $IE_1$ of Na = 5.1 eV, is:
Two electrons occupying the same orbital are distinguished by:
From the given equation, certain conclusions are drawn: $E = -2.178 \times 10^{-18} \text{ J } \left(\frac{Z^2}{n^2}\right)$. Choose the incorrect statement:
The orientation of an atomic orbital is governed by:
Be²⁺ is isoelectronic with which of the following ions?
Uncertainty in position of an electron ($e^-$) and Helium atom (He) is similar. If uncertainty in momentum of electron is $32 \times 10^5$, then uncertainty in momentum of Helium will be:
The product(s) formed from the following reaction is/are:
The intermediate compound 'X' in the following chemical reaction is: $$\text{Toluene} \xrightarrow{CrO_2Cl_2/CS_2} X \xrightarrow{H_3O^+} \text{Benzaldehyde}$$
Which of the following pairs of d-orbitals will have electron density along the axes?
The energy absorbed by each molecule (A₂) of a substance is 4.4 × 10⁻¹⁹ J and bond energy per molecule is 4.0 × 10⁻¹⁹ J. The kinetic energy of the molecule per atom will be:
A pair of d-orbitals having electron density along the axes is:
Consider the following sets of quantum numbers (n, l, m, s): (i) 3, 0, 0, +1/2 (ii) 2, 2, 1, +1/2 (iii) 4, 3, -2, -1/2 (iv) 1, 0, -1, -1/2 (v) 3, 2, 3, +1/2 Which of the following sets of quantum numbers is not possible?
If the half-life is independent of its initial concentration, then the order of the reaction is:
What results from the electrolytic reduction of nitrobenzene in a highly acidic medium?