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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:
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 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 :
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 coordination number of Ni in $[Ni(C_2O_4)_3]^{4-}$ is:
Glucose + $x$ Phenyl hydrazine $\rightarrow$ Osazone. '$x$' will be:
What is the maximum numbers of electrons that can be associated with the following set of quantum numbers? n=3, l = 1 and m=-1
The ions O²⁻, F⁻, Na⁺, Mg²⁺, and Al³⁺ are isoelectronic. Their ionic radii show:
The number of orbitals indicated by the following set of quantum numbers, $n = 3, l = 2, m = +2$ is:
Which of the following molecule/ion is not paramagnetic:
The value of Planck's constant is $6.63 \times 10^{-34} \text{ J s}$. The velocity of light is $3.0 \times 10^8 \text{ m s}^{-1}$. The closest value to the wavelength in nanometers of a quantum of light with a frequency of $8 \times 10^{15} \text{ s}^{-1}$ is:
Benzaldehyde cannot be prepared by: