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Draw the structures of the following molecules: XeF4
Concept: P - Block Group 18 Elements > Concept of Group 18 Elements
Define terms: Fuel cell
Concept: Batteries > Primary Batteries
Write two important advantages of reflecting telescope over a refracting telescope.
Concept: Optical Instruments: Telescope
Write the equation involved in the following reaction:
Reimer-Tiemann reaction
Concept: Chemical Properties of Phenol
How do you convert the Toluene to Benzoic acid
Concept: Acids > Nomenclature of Carboxylic Acids
Write the chemical equation involved in the following reaction:
Hoffmann-bromamide degradation reaction
Concept: Amines > Preparation of Amines
Illustrate the following reaction giving suitable example in each case:Gabriel phthalimide synthesis
Concept: Amines > Preparation of Amines
Why are infra-red waves often called heat waves? Explain.
Concept: Electromagnetic Spectrum
Use Gauss' law to derive the expression for the electric field `(vecE)` due to a straight uniformly charged infinite line of charge density λ C/m.
Concept: Applications of Gauss’s Law
Amino acids show amphoteric behaviour. Why?
Concept: Proteins > Amino Acids
Write the S.I. unit of mutual inductance.
Concept: Inductance > Mutual Inductance
A first-order reaction is 50% completed in 40 minutes at 300 K and in 20 minutes at 320 K. Calculate the activation energy of the reaction. (Given : log 2 = 0·3010, log 4 = 0·6021, R = 8·314 JK–1 mol–1)
Concept: Temperature Dependence of the Rate of a Reaction
Draw the structures of the HClO3.
Concept: P - Block Group 17 Elements > Oxoacids of Halogens
Write the chemical equations to illustrate the following name reaction:
Cannizzaro’s reaction
Concept: Aldehydes and Ketones > Chemical Reactions of Aldehydes and Ketones - Other Reactions
Give reasons for the following:
Aniline does not undergo Friedel- Crafts reaction.
Concept: Amines > Chemical Reactions of Amines - Electrophilic Substitution
Define the following terms: Essential amino acids
Concept: Proteins > Amino Acids
Why is bithional added to soap?
Concept: Cleansing Agents - Soaps
State the two Kirchhoff’s rules used in electric networks. How are there rules justified?
Concept: Kirchhoff’s Rules
In a single slit diffraction experiment, the width of the slit is made double the original width. How does this affect the size and intensity of the central diffraction band?
Concept: Diffraction of Light > The Single Slit
