List of top Chemistry Questions asked in NEET (UG)

The given graph is a representation of kinetics of a reaction.
The y and x axes for zero and first order reactions, respectively are

Compound X on reaction with O₃ followed by $\frac{Zn}{H_2O}$ gives formaldehyde and 2-methyl propanal as products. The compound X is:

Statement I: The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions
Statement II: The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the above statements choose the most appropriate answer from the options given below:

Identify the incorrect statement from the following.

Given below are two statements:
Statement I: In Lucas test, primary, secondary and tertiary alcohols are distinguished on the basis of their reactivity with conc. HCl +ZnCl₂, knowns as Lucas Reagent.
Statement II: Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent.
In the light of the above statements, choose the most appropriate answer from the options given below:

What mass of 95% pure $CaCO_3$ will be required to neutralise 50 mL of 0.5 M $HCl$ solution according to the following reaction?
$CaCO_3(s) + 2HCl(aq) → CaCl_2(aq) + CO_2(g) + 2H_2O(l)$
[Calculate upto second place of decimal point]

For a first order reaction A → Products, initial concentration of A is 0.1 M, which becomes 0.001M after 5 minutes. Rate constant for the reaction in min^-1 is

The incorrect statement regarding chirality is:

The product formed from the following reaction sequence is

Which compound amongst the following is not an aromatic compound?

In the neutral or faintly alkaline medium, KMnO₄ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from

If radius of second Bohr orbit of the He⁺ ion is 105.8pm, What is the radius of third Bohr Orbit of Li²⁺ ion?

The IUPAC name of the complex [Ag(H₂O)₂][Ag(CN)₂] is:

Which of the following sequence of reactions is suitable to synthesize chlorobenzene?

Which statement regarding polymers is not correct?

Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.
Statement II: o-nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.
Choose the most appropriate answer from the options given below:

The lUPAC name of an element with atomic number 119 is

The correct IUPAC name of the following compound is

At 298 K, the standard electrode potentials of Cu²⁺/Cu, Zn²⁺/Zn, Fe²⁺/Fe and Ag⁺/Ag are 0.34 V, - 0.76 V, - 0.44 V and 0.80 V, respectively.
On the basis of standard electrode potential, predict which of the following reaction cannot occur?

Assertion (A): ICl is more reactive than I₂
Reason(R): I-Cl bond is weak than I-I bond
Choose the most appropriate answer from the options given below: