List of top Chemistry Questions asked in AIIMS BSc Nursing

Why do aryl halides not show nucleophilic substitution reaction?

What will be formed when \(CH_{3}-CH=CH_{2}+HBr\) reacts in the presence of peroxide?

What is formed when benzene diazonium chloride (BDC) reacts with phenol?

\(R-CONH_{2}+Br_{2}+4NaOH \rightarrow R-NH_{2}+Na_{2}CO_{3}+2NaBr+2H_{2}O\); this reaction is:

Which compound undergoes the \(S_{N}2\) reaction the fastest?

Assertion (A): The first ionization enthalpy of nitrogen is higher than that of oxygen.
Reason (R): Nitrogen has a half-filled \(2p\) orbital, which is extra stable.

What is the magnetic dipole moment of \(Mn^{2+}\;(3d^{5})\)?

The entropy change when 400 J of heat is absorbed reversibly at 400 K is:

100 mL of 2 M HCl is diluted to 500 mL. The molarity of the diluted solution is:

According to Molecular Orbital Theory, the bond order of O$_2$ is:

The coordination number of cobalt in [Co(NH$_3$)$_6$]Cl$_3$ is:

The IUPAC name of CH$_3$CH(OH)CH$_2$CH$_3$ is:

Which reagent converts ethanol into bromoethane?

At equilibrium for the reaction N$_2$(g) + 3H$_2$(g) $\rightleftharpoons$ 2NH$_3$(g), the concentrations are [N$_2$] = 0.20 M, [H$_2$] = 0.60 M and [NH$_3$] = 0.80 M. The value of K$_c$ is:

According to Valence Bond Theory, the hybridization of the central metal ion in [Ni(CN)$_4$]$^{2-}$ is:

A solution is prepared by dissolving 5.85 g of NaCl (Molar mass = 58.5 g mol$^{-1}$) in water to make 500 mL of solution. The molarity of the solution is:

Consider the following statements: I. Aniline does not give Friedel-Crafts reaction. II. Aromatic primary amines cannot be prepared by Gabriel phthalimide synthesis. Choose the correct option.

Consider the following statements: I. Cellulose contains only \(\beta(1\rightarrow4)\) glycosidic linkages. II. Starch contains both \(\alpha(1\rightarrow4)\) and \(\alpha(1\rightarrow6)\) glycosidic linkages.

Consider the following statements: I. Aniline does not give Friedel-Crafts reaction. II. Aromatic primary amines cannot be prepared by Gabriel phthalimide synthesis.

Which statement is logical according to Werner's theory?

The following are catalysts and their respective processes/reactions. The wrong pair is:

The catalytic activity of transition elements is related to their:

Zirconium is a transition element, but Zinc is not. Why?

For the reaction \[ N_2 + O_2 \rightleftharpoons 2NO \] the equilibrium concentrations are given as \[ [N_2]=0.5\,M,\qquad [O_2]=0.7\,M,\qquad [NO]=0.4\,M \] Calculate the value of \(K_c\).

Which of the following carbohydrates is the sweetest sugar?