English

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

Advertisements
[object Object]
[object Object]
Subjects
Popular subjects
Topics
Advertisements
Advertisements
Chemistry
< prev  1 to 20 of 1638  next > 

Define terms: Fuel cell

Appears in 15 question papers
Chapter: [4] Electrochemistry
Concept: Batteries >> Primary Batteries

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction

Appears in 13 question papers
Chapter: [13] Amines
Concept: Amines >> Preparation of Amines

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction

Appears in 13 question papers
Chapter: [13.01] Amines
Concept: Amines >> Preparation of Amines

Define the following term:

Essential amino acids

Appears in 12 question papers
Chapter: [14.02] Proteins
Concept: Biomolecules in the Cell > Proteins >> Amino Acids

What is Lanthanoid contraction?

Appears in 11 question papers
Chapter: [8.02] F-block Elements
Concept: F-block Elements >> The Lanthanoids

Draw the structures of the HClO3.

Appears in 10 question papers
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Oxoacids of Halogens

Give reasons for the following:

The transition metals generally form coloured compounds.

Appears in 7 question papers
Chapter: [8.01] D-block Elements
Concept: General Properties of the Transition Elements (D-block)

On the basis of crystal field theory, write the electronic configuration for d4 ion if ∆0 < P.

Appears in 7 question papers
Chapter: [9] Coordination Compounds
Concept: Bonding in Coordination Compounds >> Crystal Field Theory (CFT)

Explain the following reaction:

Cannizzaro reaction

Appears in 7 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Other Reactions

State Kohlrausch’s law of independent migration of ions.

Appears in 6 question papers
Chapter: [4] Electrochemistry
Concept: Conductance of Electrolytic Solutions >> Variation of Conductivity and Molar Conductivity with Concentration

The following data were obtained during the first order thermal decomposition of SO2Cl2 at a constant volume :

SO2Cl2 (g) → SO2 (g) + Cl2 (g)

Experiment Time/s–1 Total pressure/atm
1 0 0.4
2 100 0.7

Calculate the rate constant.

(Given : log 4 = 0.6021, log 2 = 0.3010)

Appears in 6 question papers
Chapter: [5] Chemical Kinetics
Concept: Factors Influencing Rate of a Reaction

Account for the following : Nitrogen does not form pentahalide.

Appears in 6 question papers
Chapter: [7.01] Group 15 Elements
Concept: p-Block elements of Group 15 Elements >> Dinitrogen

State Henry’s law.

Appears in 5 question papers
Chapter: [2] Solutions and Colligative Properties
Concept: Solubility >> Solubility of a Gas in a Liquid

Define limiting molar conductivity.

Appears in 5 question papers
Chapter: [4] Electrochemistry
Concept: Conductance of Electrolytic Solutions >> Variation of Conductivity and Molar Conductivity with Concentration

Distinguish between lanthanoid and actinoids.

Appears in 5 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: F-block Elements >> The Actinoids

Account for the following:

Zn is not considered as a transition element.

Appears in 5 question papers
Chapter: [8.01] D-block Elements
Concept: General Properties of the Transition Elements (D-block)

Distinguish between lanthanoid and actinoids.

Appears in 5 question papers
Chapter: [8.02] F-block Elements
Concept: F-block Elements >> The Actinoids

How are the following conversions carried out?

propene to 1-iodopropane

Appears in 5 question papers
Chapter: [10] Halogen Derivatives
Concept: Uses and Environmental Effects of Some Polyhalogen Compounds

Define Enantiomers.

Appears in 5 question papers
Chapter: [10.01] Haloalkanes
Concept: Introduction of Haloalkanes and Haloarenes

Define Enantiomers.

Appears in 5 question papers
Chapter: [10.02] Haloarenes
Concept: Introduction of Haloalkanes and Haloarenes
< prev  1 to 20 of 1638  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×