English

HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

Advertisements
Subjects
Topics
Subjects
Popular subjects
Topics
Advertisements
Advertisements
Chemistry
< prev  21 to 40 of 1572  next > 

Define Osmosis.

Appears in 4 question papers
Chapter: [2] Solutions
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure

Define Osmosis.

Appears in 4 question papers
Chapter: [2] Solutions and Colligative Properties
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure

Write the mathematical equation of the first law of thermodynamics for an isochoric process.

Appears in 4 question papers
Chapter: [3] Chemical Thermodynamics and Energetic
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics

Define buffer solution.

Appears in 4 question papers
Chapter: [3] Ionic Equilibria
Concept: Buffer Solutions

Write the mathematical equation of the first law of thermodynamics for an isochoric process.

Appears in 4 question papers
Chapter: [4] Chemical Thermodynamics
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics

Define the Standard enthalpy of combustion.

Appears in 4 question papers
Chapter: [4] Chemical Thermodynamics
Concept: Thermochemistry

Three moles of an ideal gas are expanded isothermally from 15 dm3 to 20 dm3 at a constant external pressure of 1.2 bar. Calculate the amount of work in Joules.

Appears in 4 question papers
Chapter: [4] Chemical Thermodynamics
Concept: Expression for Pressure-volume (PV) Work

For a reaction A + B ⟶ P, the rate is given by

Rate = k [A] [B]2

How is the rate of reaction affected if the concentration of B is doubled?

Appears in 4 question papers
Chapter: [5] Chemical Kinetics
Concept: Factors Influencing Rate of a Reaction

For a reaction A + B ⟶ P, the rate is given by

Rate = k [A] [B]2

What is the overall order of reaction if A is present in large excess?

Appears in 4 question papers
Chapter: [5] Chemical Kinetics
Concept: Factors Influencing Rate of a Reaction

Explain pseudo-first-order reaction with an example.

Appears in 4 question papers
Chapter: [6] Chemical Kinetics
Concept: Pseudo First Order Reaction

Describe the manufacturing of H2SO4 by the contact process.

Appears in 4 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Elements of group 16 have lower ionization enthalpy values compared to those of group 15 elements. Explain why?

Appears in 4 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Atomic and Physical Properties of Elements of Group 16, 17 and 18

[NiCl4]2− is paramagnetic, while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni = 28)

Appears in 4 question papers
Chapter: [9] Coordination Compounds
Concept: Bonding in Coordination Compounds >> Valence Bond Theory (VBT)

Define racemic mixture.

Appears in 4 question papers
Chapter: [10.01] Haloalkanes
Concept: Physical Properties of Haloalkanes and Haloarenes

How is phenol converted into the following?

Benzene

Appears in 4 question papers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How is phenol converted into the following?

Benzene

Appears in 4 question papers
Chapter: [11.01] Alcohols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How is phenol converted into the following?

Benzene

Appears in 4 question papers
Chapter: [11.02] Phenols
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How is phenol converted into the following?

Benzene

Appears in 4 question papers
Chapter: [11.03] Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

Write the reactions involved in the preparation of Teflon.

Appears in 4 question papers
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Preparation of Polytetrafluoroethene (Teflon)

Write the reactions involved in the preparation of Teflon.

Appears in 4 question papers
Chapter: [15] Introduction to Polymer Chemistry
Concept: Introduction to Polymers >> Preparation of Polytetrafluoroethene (Teflon)
< prev  21 to 40 of 1572  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×