TyroCity: Chemistry 11 Notes

Preliminary Idea of Reaction Mechanism

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Define electrophile and nucleophile with one example each.

What is evaporation? How does it differ from boiling?

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Ans: Evaporation is defined as the process of conversion of liquid into vapor from the surface of the liquid at room temperature.

Evaporation	Boiling
It takes place at any temperature.	It takes place at boiling point only.
It takes place at the surface of liquid.	It takes place at the entire volume of the liquid.
It is slow and silent process.	It fast and noisy process.

Metal and Metallurgical Principles

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Name the process for concentration of sulphide ore.
Which metals can be extracted from the following ores:

Galena, cinnabar, argentite and zinc blend

Distinguish between calcination and roasting.
What is meant by aluminothermite process?
What is meant by Slag? Why is it important in metallurgy?
Which process is applied for the concentration of sulphide ore and why?
Can Sodium be extracted by the electrolysis of aqueous solution of sodium chloride? If not, why?
Distinguish between flux and slag with examples.

Ozone

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Write resonance structures of ozone.
How does CFC deplet Ozone layer?

Noble gas- Old is Gold

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Why are noble gases chemically inert?
What are noble gases? Write any one use of noble gases.
The first ionization energy of noble gases is higher than that of halogens. Explain.
Give an important use of noble gases.

Fundamental Principles- Old is Gold

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

For detection of elements (N, X, S) in organic compounds, why is sodium fusion carried out?
Write the structures of the following organic compounds:

(a) 2-methyl propan-1-ol

(b) 3-methyl butanoic acid

(d) 2,2-dimethyl propane

(e) 2-ethyl pent-1-ene

(f) 2-chloro-2,3-dimethyl pentane

Why is aqueous solution of sodium extract alkaline?
Define an electrophile and nucleophile giving an example from each.
Why is it necessary to prepare sodium extract for the detection of foreign elements in organic compounds?
Write short notes on Homologous series.
What are anti-knocking reagents? Name one important anti-knocking agent.
How would you detect the presence of nitrogen and sulphur together in the organic compound?
Why is Lassagne’s extract boiled with concentrated nitric acid while testing for halogen?
What is the function of Tetraethyl lead (TEL) in gasoline?
Write down the structure formulae of the third member of the following homologous series:

(a) Alkanamide

(b) Alkanol

(d) Alkanoic acid

Carbon

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Carbon monoxide is used as a reducing agent in metallurgy but not carbon dioxide. Why?
Give the laboratory method of preparation of carbon monoxide.
Define the terms ‘allotropes’ with examples.
What happens when carbon monoxide is passed over heated finely divided nickel?
What happens when a piece of burning magnesium is dropped into a jar full of carbondioxide?
What happens when oxalic acid crystals are heated with concentrated sulphuric acid?
Why is carbon used as the most common reducing agent in thermal metallurgy?
What is dry ice? Why it is called so?
Why is carbon monoxide extremely poisonous?
Give examples of crystalline allotropes of Carbon.
Write a chemical reaction to show the reducing action of CO.
How would you convert CO into CO2 and vice versa?
What happens when Carbon monoxide is heated with hydrogen in presence of ZnO and Cu?
Name the latest discovered allotropic form of carbon.
What happens when:

(a) Carbon monoxide is passed over finely divided nickel at 80°C.

(b) A gas obtained from a mixture of marble and dilute hydrochloric acid is passed into lime water till excess.

(d) Carbon monoxide is passed over finely divided nickel.

Atomic Structure

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Give the electronic configuration of copper (At. no. 29) in terms of s, p, d, f orbitals.
What is an orbital? Write the shapes of s and p orbitals.
Give the electronic configuration of silver (At. No. 47) in terms of s, p, d, f orbitals.
A scientist investing the electron structure of the element concluded that the K, L and M shells were all full and that the N shell contained four electrons. What is the atomic number of that electron?
For n=4, write all possible values of l and m.
Discuss how Bhors was able to predict the line spectra of a hydrogen atom.
Write the electronic configuration of Chromium (At. No. 24) in terms of s.p.d orbitals.
An atomic orbital has n=3, what are the possible values of l and m?
What are the values for n, l and m for 2Px orbital?
An electorn possesses the quantum numbers n=2, l=0 and m=0. What so they mean?
Write the atomic number of elements whode outermost electornic configuration are represented by (a) 3S1 (b) 3P6.
What observation did Rutherford led to conclude that the nucleus of atom is very small but heavy mass?
Why is it that electron does not jump into the nucleus?
What is meant by atomic spectrum?
Write the Lewis structure of the compound formed by two elements A and B whose atomic numbers are 12 and 17 respectively.
What are the values of Principal quantum number (n) and Azimuthal quantum number (l) for the following orbitals: (i) 3S (ii) 4P
An atom of an element has 24 electrons, what is the total number of S eletrons?
Give the values of all four quantum number of 11th electorn of Magnesium (At. No. = 12).
What observations did Rutherford make the following conclusions? a) The atomic centre is positively charged. b) Most of the space inside the atom is hollow.
Give the values of all four quantum number of outermost electron of sodium atom (Z=11).
What is Bhor’s-Bury rule?

Chemistry XI Questions

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

Question Collection

NEB Model Question for Chemistry – Class 11

General and Physical Chemistry

Language of Chemistry

Language of Chemistry

Chemical Arithmetic

State of Matter: Gaseous State

Gaseous State

State of Matter: Liquid State

State of Matter: Solid State

Solid State

Atomic Structure

Atomic Structure

Nuclear Chemistry

Nuclear Chemistry

Electronic Theory of Valency and Bonding

Electronic Theory of Valency and Bonding

Periodic Classification of Elements

Periodic Classification of Elements

Inorganic Chemistry

Non-Metal I

Non-Metals II

Metal and Metallurgical Principles

Metal and Metallurgical Principles

Alkali Metals

Alkali Metals

Alkaline Earth Metals

Alkaline Earth Metals

Organic Chemistry

Introduction to Organic Chemistry

OTHER TOPICS

In terms of vapour pressure, what do you mean by a boiling point of a liquid?

Structure Isomerism in Organic Compounds

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

1. Write the isomers of C2H6O and give their IUPAC names.

Write the isomers of C2H4O2 and give their IUPAC names.
Write the possible isomers of C6H14 and give their IUPAC names.
Write short notes on structure isomerism in Organic Compound.
Write the isomers of C4H10 and give their IUPAC names.

Gaseous State

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

At what condition the value of P xV is always constant?
Draw volume (V) and temperature (tÂ°C) relationship of gases at constant pressure. Indicate the temperature at which the volume occupied by the gas becomes zero. Name that temperature.
What do you mean by ideal gas and real gas?
What is an ideal gas? Under what conditions will a gas behave nearly like an ideal gas?
State Dalton’s law of partial pressure.
What is universal gas constant?
State and explain Graham’s law of diffusion of gases.
5 grams of hydrogen diffused through a porous membrane in 30 minutes. Find the time required to diffuse the same amount of SO2 gas at identical conditions.

Environmental Pollution- Old is Gold

Chemistry 11 Notes — Sat, 12 Jul 2014 05:41:42 +0000

What is meant by acid rain? Give one major effect of acid rain.