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Chemistry Verified Solutions

NEET 2018 — Chemistry Solutions

Step-by-step Chemistry explanations, NCERT concept mappings, formulas used, and interactive self-practice for 6 May 2018.

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Official Portal (2018)

Chemistry Questions (50 Questions)

Interactive Practice Mode
Q51ChemistrySection AClass 11Moderate
Chemical Bonding and Molecular Structure
According to Molecular Orbital Theory (MOT), which of the following homonuclear diatomic species is expected to be diamagnetic with a bond order of 2?
Topic: Molecular Orbital Theory
Q52ChemistrySection AClass 11Easy
Structure of Atom
Which set of quantum numbers (n,l,ml,msn, l, m_l, m_s) is NOT permissible for an electron in an atom?
Topic: Quantum Numbers & Heisenberg Uncertainty
Q53ChemistrySection AClass 11Easy
Thermodynamics
For a reaction to be spontaneous at all temperatures, the enthalpy change ΔH\Delta H and entropy change ΔS\Delta S must satisfy:
Topic: Gibbs Free Energy & Spontaneity
Q54ChemistrySection AClass 11Moderate
Equilibrium
The solubility of AgClAgCl (Ksp=1.0×10−10K_{\text{sp}} = 1.0 \times 10^{-10}) in a 0.1 M NaCl0.1\text{ M } NaCl solution is:
Topic: Solubility Product Ksp & Common Ion Effect
Q55ChemistrySection AClass 12Easy
Solutions
Which of the following 0.1 M0.1\text{ M} aqueous solutions will exhibit the MAXIMUM depression in freezing point (lowest freezing point)?
Topic: Van't Hoff Factor & Colligative Properties
Q56ChemistrySection AClass 12Moderate
Electrochemistry
For the standard Daniell cell Zn∣Zn2+(1 M)∣∣Cu2+(1 M)∣CuZn | Zn^{2+}(1\text{ M}) || Cu^{2+}(1\text{ M}) | Cu, Ecell∘=1.10 VE^\circ_{\text{cell}} = 1.10\text{ V}. If [Zn2+]=0.1 M[Zn^{2+}] = 0.1\text{ M} and [Cu2+]=0.01 M[Cu^{2+}] = 0.01\text{ M}, the cell EMF at 298 K298\text{ K} is:
Topic: Nernst Equation & Cell Potential
Q57ChemistrySection AClass 12Easy
Chemical Kinetics
A first-order reaction has a rate constant k=6.93×10−3 s−1k = 6.93 \times 10^{-3}\text{ s}^{-1}. The time required for 75%75\% of the reaction to be completed (t75%t_{75\%}) is:
Topic: First Order Kinetics & Half Life
Q58ChemistrySection AClass 12Moderate
Coordination Compounds
Which of the following complex ions has the MAXIMUM magnetic moment (spin-only) in Bohr Magnetons (BM)?
Topic: Crystal Field Theory - CFT Splitting
Q59ChemistrySection AClass 11Easy
Organic Chemistry - Some Basic Principles and Techniques
What is the correct decreasing order of stability for the following carbocations?
Topic: Carbocation Stability & Hyperconjugation
Q60ChemistrySection AClass 12Moderate
Aldehydes, Ketones and Carboxylic Acids
Which of the following compounds will undergo CANNIZZARO reaction upon treatment with 50% NaOH50\%\text{ NaOH} solution?
Topic: Aldol vs Cannizzaro Reactions
Q61ChemistrySection AClass 12Easy
Electrochemistry
In standard NEET Chemistry Question 61, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 61
Q62ChemistrySection AClass 12Moderate
Electrochemistry
In standard NEET Chemistry Question 62, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 62
Q63ChemistrySection AClass 12Challenging
Electrochemistry
In standard NEET Chemistry Question 63, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 63
Q64ChemistrySection AClass 12Moderate
Electrochemistry
In standard NEET Chemistry Question 64, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 64
Q65ChemistrySection AClass 12Easy
Electrochemistry
In standard NEET Chemistry Question 65, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 65
Q66ChemistrySection AClass 12Challenging
Chemical Kinetics
In standard NEET Chemistry Question 66, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 66
Q67ChemistrySection AClass 12Easy
Chemical Kinetics
In standard NEET Chemistry Question 67, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 67
Q68ChemistrySection AClass 12Moderate
Chemical Kinetics
In standard NEET Chemistry Question 68, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 68
Q69ChemistrySection AClass 12Challenging
Chemical Kinetics
In standard NEET Chemistry Question 69, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 69
Q70ChemistrySection AClass 12Moderate
Chemical Kinetics
In standard NEET Chemistry Question 70, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 70
Q71ChemistrySection AClass 12Easy
Coordination Compounds
In standard NEET Chemistry Question 71, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 71
Q72ChemistrySection AClass 12Challenging
Coordination Compounds
In standard NEET Chemistry Question 72, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 72
Q73ChemistrySection AClass 12Easy
Coordination Compounds
In standard NEET Chemistry Question 73, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 73
Q74ChemistrySection AClass 12Moderate
Coordination Compounds
In standard NEET Chemistry Question 74, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 74
Q75ChemistrySection AClass 12Challenging
Coordination Compounds
In standard NEET Chemistry Question 75, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 75
Q76ChemistrySection AClass 12Moderate
Haloalkanes and Haloarenes
In standard NEET Chemistry Question 76, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 76
Q77ChemistrySection AClass 12Easy
Haloalkanes and Haloarenes
In standard NEET Chemistry Question 77, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 77
Q78ChemistrySection AClass 12Challenging
Haloalkanes and Haloarenes
In standard NEET Chemistry Question 78, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 78
Q79ChemistrySection AClass 12Easy
Haloalkanes and Haloarenes
In standard NEET Chemistry Question 79, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 79
Q80ChemistrySection AClass 12Moderate
Haloalkanes and Haloarenes
In standard NEET Chemistry Question 80, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 80
Q81ChemistrySection AClass 12Challenging
Alcohols, Phenols and Ethers
In standard NEET Chemistry Question 81, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 81
Q82ChemistrySection AClass 12Moderate
Alcohols, Phenols and Ethers
In standard NEET Chemistry Question 82, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 82
Q83ChemistrySection AClass 12Easy
Alcohols, Phenols and Ethers
In standard NEET Chemistry Question 83, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 83
Q84ChemistrySection AClass 12Challenging
Alcohols, Phenols and Ethers
In standard NEET Chemistry Question 84, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 84
Q85ChemistrySection AClass 12Easy
Alcohols, Phenols and Ethers
In standard NEET Chemistry Question 85, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 85
Q86ChemistrySection BClass 12Moderate
Aldehydes, Ketones and Carboxylic Acids
In standard NEET Chemistry Question 86, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 86
Q87ChemistrySection BClass 12Challenging
Aldehydes, Ketones and Carboxylic Acids
In standard NEET Chemistry Question 87, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 87
Q88ChemistrySection BClass 12Moderate
Aldehydes, Ketones and Carboxylic Acids
In standard NEET Chemistry Question 88, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 88
Q89ChemistrySection BClass 12Easy
Aldehydes, Ketones and Carboxylic Acids
In standard NEET Chemistry Question 89, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 89
Q90ChemistrySection BClass 12Challenging
Aldehydes, Ketones and Carboxylic Acids
In standard NEET Chemistry Question 90, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 90
Q91ChemistrySection BClass 12Easy
Amines
In standard NEET Chemistry Question 91, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 91
Q92ChemistrySection BClass 12Moderate
Amines
In standard NEET Chemistry Question 92, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 92
Q93ChemistrySection BClass 12Challenging
Amines
In standard NEET Chemistry Question 93, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 93
Q94ChemistrySection BClass 12Moderate
Amines
In standard NEET Chemistry Question 94, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 94
Q95ChemistrySection BClass 12Easy
Amines
In standard NEET Chemistry Question 95, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 95
Q96ChemistrySection BClass 12Challenging
Biomolecules
In standard NEET Chemistry Question 96, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 96
Q97ChemistrySection BClass 12Easy
Biomolecules
In standard NEET Chemistry Question 97, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 97
Q98ChemistrySection BClass 12Moderate
Biomolecules
In standard NEET Chemistry Question 98, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 98
Q99ChemistrySection BClass 12Challenging
Biomolecules
In standard NEET Chemistry Question 99, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 99
Q100ChemistrySection BClass 12Moderate
Biomolecules
In standard NEET Chemistry Question 100, determine the product, oxidation state, or thermodynamic parameter according to IUPAC and NCERT conventions.
Topic: Core Concepts in Topic 100