Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Match List-I with List-II: **List-I (Quantum Number)** (A) $m_l$ (B) $m_s$ (C) $l$ (D) $n$ **List-II (Information provided)** (I) Shape of the orbital (II) Size of the orbital (III) Orientation of the orbital (IV) Orientation of spin of the electron Choose the correct answer from the options given below:
The correct sequence of increasing radii is:
The number of Faradays(F) required to produce 20 g of calcium from molten $CaCl_2$ (Atomic mass of Ca = 40 g $mol^{-1}$) is
Which one of the following statements is not true regarding (+) lactose?
Arrange the elements Li, Be, B, C, and N in increasing order of their first ionization enthalpies:
pH of a saturated solution of $Ca(OH)_2$ is 9. The solubility product ($K_{sp}$) of $Ca(OH)_2$ is:
The correct order of first ionization enthalpy for the given four elements is:
The major product (P) formed in the following reaction sequence is: [Reaction Scheme Missing]
Identify the correct order of the size of the following species: Ca²⁺, K⁺, Ar, S²⁻, Cl⁻
The correct order of increasing electron gain enthalpy with a negative sign for the elements O, S, F, and Cl is:
Which of the following series of transitions in the spectrum of hydrogen atoms falls in the visible region?
Which is the correct thermal stability order for $H_2E$ (E = O, S, Se, Te and Po)?
Measuring Zeta potential is useful in determining which property of colloidal solution?
A non-reducing sugar among the following is:
A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy $75\%$ of octahedral voids. The formula of the compound is :
Which one of the following compounds will be most readily dehydrated?
Which one of the following electrons in the ground state will have the least amount of energy?
A monochromatic infrared range finder of power $1 \text{ milliwatt}$ emits photons with wavelength $1000 \text{ nm}$ in $0.1 \text{ second}$. The number of photons emitted in $0.1 \text{ second}$ is: (Given: $h = 6.626 \times 10^{-34} \text{ J s}$, $c = 3 \times 10^8 \text{ m s}^{-1}$, Avogadro number $= 6.022 \times 10^{23}$)
In the neutral or faintly alkaline medium, $KMnO_4$ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from:
The incorrect statement among the following is: