NTA JEE Mains 22nd Jan 2025 Shift 2 - Chemistry

Given below are two statements : Statement (I) : Nitrogen, sulphur, halogen and phosphorus present in an organic compound are detected by Lassaigne's Test. Statement (II) : The elements present in the compound are converted from covalent form into ionic form by fusing the compound with Magnesium in Lassaigne's test. In the light of the above statements, choose the correct anower from the options given below :

Density of 3 M NaCl solution is $$1.25 g/mL$$. The molality of the solution is :

The correct order of the following complexes in terms of their crystal field stabilization energies is :

Given below are two statements : Statement (I) : Corrosion is an electrochemical phenomenon in which pure metal acts as an anode and impure metal as a cathode. Statement (II) : The rate of corrosion is more in alkaline medium than in acidic medium. In the light of the above statements, choose the correct answer from the options given below :

Consider the given figure and choose the correct option :

The maximum number of RBr producing 2-methylbutane by above sequence of reactions is ________ -
(Consider the structural isomers only)

The species which does not undergo disproportionation reaction is :

The molar solubility(s) of zirconium phosphate with molecular formula $$(Zr^{4+})_{3}(PO_{4}^{3-})_{4}$$ is given by relation :

Identify the homoleptic complex(es) that is/are low spin. $$(A)[Fe(CN)_{5}NO]^{2-}(B)[CoF_{6}]^{3-}(C)[Fe(CN)_{6}]^{4-}(D)[Co(NH_{3})_{6}]^{3+}(E)[Cr(H_{2}O)_{6}]^{2+}$$ Choose the correct answer from the options given below :

Match List - I with List - II.
Choose the correct answer from the options given below :

Identify the number of structure/s from the following which can be correlated to D-glyceraldehyde.

Given below are two statements : Statement (I) : A spectral line will be observed for a $$2p_{x}\rightarrow 2p_{y}$$ transition.Statement (II) :$$2p_{x}$$ and $$2p_{y}$$ are degenerate orbitals. In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements : Statement (I) : An element in the extreme left of the periodic table forms acidic oxides. Statement (II) : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table. In the light of the above statements, choose the correct answer from the options given below :

Residue (A) + HCl (dil)$$\rightarrow $$ Compound (B) Structure of residue (A) and Compound (B) formed respectively is :

The alkane from below having two secondary hydrogens is :

When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major product is :

The most stable carbocation from the following is :

Match the Compounds (List - I) with the appropriate Catalyst/Reagents (List - II) for their reduction into corresponding amines.

Choose the correct answer from the options given below :

Arrange the following compounds in increasing order of their dipole moment : $$HBr,H_{2}S,NF_{3}\text{ and }CHCl_{3}$$

The maximum covalency of a non-metallic group 15 element ' E ' with weakest E-E bond is:

The compound with molecular formula $$C_{6}H_{6}$$, which gives only one monobromo derivative and takes up four moles of hydrogen per mole for complete hydrogenation has ________ electrons.

20 mL of 2 M NaOH solution is added to 400 mL of 0.5 M NaOH solution. The final concentration of the solution is _______ $$\times 10^{-2}M$$.(Nearest integer)

Consider the following cases of standard enthalpy of reaction ($$\Delta H_{r}^{\circ}$$ in kJ $$mol^{-1}$$)
$$C_{2}H_{6}(g)+\frac{7}{2}O_{2}(g) \rightarrow 2CO_{2}(g)+3H_{2}O(1)\Delta H_{1}^{\circ}=-1550$$
$$C(graphite)+O_{2}(g)\rightarrow CO_{2}(g)$$ $$\Delta H_{2}^{\circ}=-393.5$$ The magnitude of $$\Delta H_{fC_{2}H_{6}(g)}^{\circ}$$ is_______
$$H_{2}(g)+\frac{1}{2}O_{2}(g)\rightarrow H_{2}O(1)$$ $$\Delta H_{3}^{\circ}=-286$$
$$kJ mol^{-1}$$ (Nearest integer).

Niobium ( Nb ) and ruthenium (Ru) have "x" and "y" number of electrons in their respective 4 d orbitals The value of x+y is _______.

The complex of $$Ni^{2+}$$ ion and dimethyl glyoxime contains ________ number of Hydrogen (H) atoms.