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

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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)

What is the elasticity of demand?

Appears in 4 question papers
Chapter: [1.03] Analysis of Demand and Elasticity of Demand
Concept: Concept of Elasticity of Demand

State and explain the law of demand.

Appears in 4 question papers
Chapter: [1.03] Analysis of Demand and Elasticity of Demand
Concept: Concept of Demand

Distinguish between the following.

Standard coins and Token coins.

Appears in 4 question papers
Chapter: [2.04] Money
Concept: Money - Store of Value

Distinguish between Surplus budget and Deficit budget.

Appears in 4 question papers
Chapter: [2.07] Public Economics
Concept: Types of Budget

State and explain the law of demand.

Appears in 4 question papers
Chapter: [3.1] Demand Analysis
Concept: Concept of Demand

What is the elasticity of demand?

Appears in 4 question papers
Chapter: [3.2] Elasticity of Demand
Concept: Concept of Elasticity of Demand

Distinguish between Surplus budget and Deficit budget.

Appears in 4 question papers
Chapter: [8] Public Finance in India
Concept: Types of Budget

Distinguish between the following concepts:

Public Finance and Private Finance

Appears in 4 question papers
Chapter: [8] Public Finance in India
Concept: Public Finance
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