NEET 2017 Chemistry Questions

Which of the following pairs of ions is isoelectronic and isostructural?

Which of the following pairs of compounds is isoelectronic and isostructural?

Which of the following statements is not correct about diborane?

Match the interhalogen compounds of Column I with the geometry in Column II and assign the correct code. Column I: (a) \ce{XX'}, (b) \ce{XX'3}, (c) \ce{XX'5}, (d) \ce{XX'7} Column II: (i) T-shape, (ii) Pentagonal bipyramidal, (iii) Linear, (iv) Square pyramidal, (v) Tetrahedral

The most suitable method of separation of a 1 : 1 mixture of ortho- and para-nitrophenols is

Which one of the following pairs of species have the same bond order?

Which one is the most acidic compound?

Which one is the correct order of acidity?

The correct increasing order of basic strength for the following compounds is: (I) aniline, (II) p-nitroaniline, (III) p-toluidine (4-methylaniline).

The correct statement regarding an electrophile is:

The most suitable method of separation of a 1:1 mixture of ortho- and para-nitrophenols is:

The IUPAC name of the compound shown (a six-carbon chain bearing a terminal \ce{-CHO}, an adjacent \ce{CH3} branch, a ketone \ce{C=O}, and a \ce{C=C} double bond) is:

With respect to the conformers of ethane, which of the following statements is true?

Predict the correct intermediate (A) and product (B) in the following reaction: \ce{H3C-C#CH ->[\text{H2O, H2SO4}][\text{HgSO4}] (A) -> (B)}

Which one is the correct order of acidity?

A gas is allowed to expand in a well insulated container against a constant external pressure of $2.5\ \text{atm}$ from an initial volume of $2.50\ \text{L}$ to a final volume of $4.50\ \text{L}$. The change in internal energy $\Delta U$ of the gas in joules will be

For a given reaction, $\Delta H = 35.5\ kJ\,mol^{-1}$ and $\Delta S = 83.6\ J\,K^{-1}mol^{-1}$. The reaction is spontaneous at: (Assume that $\Delta H$ and $\Delta S$ do not vary with temperature.)

It is because of inability of $ns^2$ electrons of the valence shell to participate in bonding that

Name the gas that can readily decolourise acidified \ce{KMnO4} solution:

It is because of inability of $ns^2$ electrons of the valence shell to participate in bonding that

The element $Z = 114$ has been discovered recently. It will belong to which of the following family/group and electronic configuration?

Which one is the wrong statement?

Which one is a wrong statement?

Which of the following concentration terms is dependent on temperature?

The correct order of the stoichiometries of \ce{AgCl} formed when \ce{AgNO3} in excess is treated with the complexes \ce{CoCl3.6NH3}, \ce{CoCl3.5NH3}, \ce{CoCl3.4NH3} respectively is:

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of $\ce{Co^3+}$ is:

An example of a sigma-bonded organometallic compound is:

Pick out the correct statement with respect to \ce{[Mn(CN)6]^3-}:

Which of the following is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

Consider the following reactions of \ce{X} ($\ce{C2H6O}$): \ce{X ->[Cu][573 K] A} \ce{A ->[{[Ag(NH3)2]+, OH-}][\Delta] silver mirror} \ce{A ->[OH-, \Delta][aldol] Y} \ce{A ->[{H2N-NH-CO-NH2}] Z} Identify \ce{A}, \ce{X}, \ce{Y} and \ce{Z}.

The IUPAC name of the compound \ce{OHC-CH(CH3)-CO-CH=CH-CH3} is:

Which one is the most acidic compound?

The most suitable method of separation of a $1:1$ mixture of ortho- and para-nitrophenols is

The heating of phenyl-methyl ether (anisole) with \ce{HI} produces

Which one of the following statements is \textbf{not} correct?

A first order reaction has a specific reaction rate of $10^{-2}\ \text{s}^{-1}$. How much time will it take for $20\ \text{g}$ of the reactant to reduce to $5\ \text{g}$?

Mechanism of a hypothetical reaction \ce{X2 + Y2 -> 2XY} is given below: (i) \ce{X2 <=> X + X} (fast) (ii) \ce{X + Y2 <=> XY + Y} (slow) (iii) \ce{X + Y -> XY} (fast) The overall order of the reaction will be

Which one of the following statements is not correct?

Which of the following statements is not correct?

If molality of the dilute solution is doubled, the value of molal depression constant ($K_f$) will be

Which of the following is dependent on temperature?

The correct increasing order of basic strength for the following compounds is (I) Aniline, \ce{C6H5NH2} (II) $p$-Nitroaniline, \ce{NH2-C6H4-NO2} (\ce{-NO2} at the para position) (III) $p$-Toluidine, \ce{NH2-C6H4-CH3} (\ce{-CH3} at the para position)

Which of the following reactions is appropriate for converting acetamide $\ce{(CH3CONH2)}$ to methanamine $\ce{(CH3NH2)}$?

Identify A and predict the type of reaction: 2-bromoanisole (an aryl bromide bearing an $\ce{-OCH3}$ group ortho to $\ce{Br}$) $\ce{->[NaNH2]}$ A

The reason for greater range of oxidation states in actinoids is attributed to

In the electrochemical (Daniell) cell \ce{Zn | ZnSO4(0.01 M) || CuSO4(1.0 M) | Cu}, the emf is $E_1$. When the concentration of \ce{ZnSO4} is changed to $1.0\ \text{M}$ and that of \ce{CuSO4} to $0.01\ \text{M}$, the emf changes to $E_2$. Which one of the following is the correct relationship between $E_1$ and $E_2$? (Given $\frac{RT}{F} = 0.059$)