NTA JEE Mains 27th Jan 2024 Shift 1 - Chemistry

The electronic configuration for Neodymium is: [Atomic Number for Neodymium 60]

Which of the following electronic configuration would be associated with the highest magnetic moment?

Choose the polar molecule from the following :

Which of the following is strongest Bronsted base?

Given below are two statements : Statement (I) : Aqueous solution of ammonium carbonate is basic. 

Statement (II) : Acidic/basic nature of salt solution of a salt of weak acid and weak base depends on $$K_a$$ and $$K_b$$ value of acid and the base forming it. 

In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Melting point of Boron (2453 K) is unusually high in group 13 elements. 

Reason (R) : Solid Boron has very strong crystalline lattice.

In the light of the above statements, choose the most appropriate answer from the options given below:

IUPAC name of the following compound (P) is :

Cyclohexene is _________ type of an organic compound.

Which of the following has highly acidic hydrogen?

The ascending order of acidity of $$-OH$$ group in the following compounds is : 

(A) Bu-OH

Choose the correct answer from the options given below :

Highest enol content will be shown by :

A solution of two miscible liquids showing negative deviation from Raoult's law will have :

Element not showing variable oxidation state is :

NaCl reacts with conc. $$H_2SO_4$$ and $$K_2Cr_2O_7$$ to give reddish fumes (B), which react with NaOH to give yellow solution (C). (B) and (C) respectively are :

Given below are two statements : 

Statement (I) : The 4f and 5f-series of elements are placed separately in the Periodic table to preserve the principle of classification. Statement (II) : s-block elements can be found in pure form in nature. 

In light of the above statements, choose the most appropriate answer from the options given below:

Yellow compound of lead chromate gets dissolved on treatment with hot NaOH solution. The product of lead formed is a :

Consider the following complex ions $$P = [FeF_6]^{3-}$$, $$Q = [V(H_2O)_6]^{2+}$$, $$R = [Fe(H_2O)_6]^{2+}$$. The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is :

The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is :

Given below are two statements :

Statement (I) : p-nitrophenol is more acidic than m-nitrophenol and o-nitrophenol. 

Statement (II) : Ethanol will give immediate turbidity with Lucas reagent. 

In the light of the above statements, choose the correct answer from the options given below :

Two nucleotides are joined together by a linkage known as :

Mass of methane required to produce $$22$$ g of CO after complete combustion is _______ g. (Given Molar mass in g mol$$^{-1}$$, $$C = 12.0, H = 1.0, O = 16.0$$)

The number of electrons present in all the completely filled subshells having $$n = 4$$ and $$s = +\frac{1}{2}$$ is ______ (Where $$n$$ = principal quantum number and $$s$$ = spin quantum number)

Sum of bond order of CO and $$NO^+$$ is _______.

If three moles of an ideal gas at $$300$$ K expand isothermally from $$30 \text{ dm}^3$$ to $$45 \text{ dm}^3$$ against a constant opposing pressure of $$80$$ kPa, then the amount of heat transferred is _________ J.

Among the following, total number of meta directing functional groups is (Integer based) $$-OCH_3$$, $$-NO_2$$, $$-CN$$, $$-CH_3$$, $$-NHCOCH_3$$, $$-COR$$, $$-OH$$, $$-COOH$$, $$-Cl$$

Among the given organic compounds, the total number of aromatic compounds is _______.

3-Methylhex-2-ene on reaction with HBr in presence of peroxide forms an addition product (A). The number of possible stereoisomers for 'A' is _______.

The mass of silver (Molar mass of Ag : $$108 \text{ g mol}^{-1}$$) displaced by a quantity of electricity which displaces $$5600$$ mL of $$O_2$$ at S.T.P. will be ______ g.

Consider the following data for the given reaction $$2HI_{(g)} \rightarrow H_{2(g)} + I_{2(g)}$$. $$[HI] \text{ (mol L}^{-1}\text{)}$$: $$0.005, \; 0.01, \; 0.02$$. Rate $$\text{(mol L}^{-1} \text{ s}^{-1}\text{)}$$: $$7.5 \times 10^{-4}, \; 3.0 \times 10^{-3}, \; 1.2 \times 10^{-2}$$. The order of the reaction is _______.

From the given list, the number of compounds with $$+4$$ oxidation state of Sulphur: $$SO_3, H_2SO_3, SOCl_2, SF_4, BaSO_4, H_2S_2O_7$$