List of top Chemistry Questions asked in NEET (UG)

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:
In one molal solution that contains 0.5 mole of a solute, there is
Amongst the following which one will have maximum 'lone pair- lone pair' electron repulsions?

Match List - I with List- II.

 List-I (Drug class) List-II (Drug molecule)
(a)Antacids(i)Salvarsan
(b)Antihistamines(ii)Morphine
(c)Analgesics(iii)Cimetidine
(d)Antimicrobials(iv)Seldane
The IUPAC name of the complex [Ag(H2O)2][Ag(CN)2] is:
The incorrect statement regarding enzymes is:
The Kjeldahl' s method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?
Which statement regarding polymers is not correct?
\(RMgX + CO_2 (\text{dry})→(\text{ether}) Y (H_3O^+)→ RCOOH\)
What is Y in the above reaction?

Statement I: Primary aliphatic amines react with HNO2 to give unstable diazonium salts.
Statement II: Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K.
Choose the most appropriate answer from the options given below:

Which of the following p-V curve represents maximum work done?

Statement I: In the coagulation of a negative sol, the flocculating power of the three given ions is in the order - Al3+ > Ba2+ > Na+
Statement II: In the coagulation of a positive sol, the flocculating power of the three given salts is in the order - NaCl > Na2SO4 > Na3PO4
Choose the most appropriate answer from the options given below:

The lUPAC name of an element with atomic number 119 is
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:
Identify the incorrect statement from the following
The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is
[Given pKa of CH3COOH = 4.57]
The compound which shows metamerism is :
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature ?

For irreversible expansion of an ideal gas under isothermal condition, the correct option is

Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O2 and 2 g H2 confined in a total volume of one litre at 08C is : [Given R=0.082 L atm mol−1K−1, T=273 K]

Consider the above reaction and identify the missing reagent/chemical.

 

Statement I : The codon 'AUG' codes for methionine and phenylalanine. Statement II : 'AAA' and 'AAG' both codons code for the amino acid lysine. In the light of the above statements, choose the correct answer from the options given below.

The correct option for the value of vapor pressure of a solution at 45\(^{\circ}\)C with benzene to octane in molar ratio 3 : 2 is : [At 45\(^{\circ}\)C vapor pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]

From the following pairs of ions which one is not an iso-electronic pair?

An organic compound contains $78 \%$ (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of $C$ is $12, H$ is $1$]