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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

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What are ligands?

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.

[14] Biomolecules
Chapter: [14] Biomolecules
Concept: undefined >> undefined

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\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.

[14] Biomolecules
Chapter: [14] Biomolecules
Concept: undefined >> undefined

Name the following halide according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:

\[\ce{CH3C(C2H5)2CH2Br}\]

[10] Halogen Derivatives
Chapter: [10] Halogen Derivatives
Concept: undefined >> undefined

Define boiling point

[2] Solutions
Chapter: [2] Solutions
Concept: undefined >> undefined

Define cell constant.

[4] Electrochemistry
Chapter: [4] Electrochemistry
Concept: undefined >> undefined

Conductivity of a solution is 6.23 x 10-5  Ω-1cm-1 and its resistance is 13710Ω. If the electrodes are 0.7cm apart, calculate the cross-sectional area of electrode.

[4] Electrochemistry
Chapter: [4] Electrochemistry
Concept: undefined >> undefined

Why is molality of a solution independent of temperature?

[2] Solutions and Colligative Properties
Chapter: [2] Solutions and Colligative Properties
Concept: undefined >> undefined

Define “zero order reaction”.

[5] Chemical Kinetics
Chapter: [5] Chemical Kinetics
Concept: undefined >> undefined

In a first order reaction x → y, 40% of the given sample of compound remains unreacted in 45 minutes. Calculate rate constant of the reaction.

[5] Chemical Kinetics
Chapter: [5] Chemical Kinetics
Concept: undefined >> undefined

A → B is a first order reaction with rate 6.6 × 10-5m-s-1. When [A] is 0.6m, rate constant of the reaction is

  • 1.1 × 10-5s-1
  • 1.1 × 10-4s-1
  • 9 × 10-5s-1
  • 9 × 10-4s-1
[5] Chemical Kinetics
Chapter: [5] Chemical Kinetics
Concept: undefined >> undefined

What is metamerism? 

[11.03] Ethers
Chapter: [11.03] Ethers
Concept: undefined >> undefined

What is metamerism? 

[11.02] Phenols
Chapter: [11.02] Phenols
Concept: undefined >> undefined

What is metamerism? 

[11.01] Alcohols
Chapter: [11.01] Alcohols
Concept: undefined >> undefined

Explain metamerism with suitable examples of ethers

[11.03] Ethers
Chapter: [11.03] Ethers
Concept: undefined >> undefined

Explain metamerism with suitable examples of ethers

[11.02] Phenols
Chapter: [11.02] Phenols
Concept: undefined >> undefined

Explain metamerism with suitable examples of ethers

[11.01] Alcohols
Chapter: [11.01] Alcohols
Concept: undefined >> undefined

How are ketones classified?

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

Write the formula of Tetraminodichloroplatinum (IV) chloridex.

[9] Coordination Compounds
Chapter: [9] Coordination Compounds
Concept: undefined >> undefined

What is calcination?

[6] General Principles and Processes of Isolation of Elements
Chapter: [6] General Principles and Processes of Isolation of Elements
Concept: undefined >> undefined
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