Get premium membership and access revision papers, questions with answers as well as video lessons.

Chem 00111: Physical –Inorganic Chemistry Question Paper

Chem 00111: Physical –Inorganic Chemistry

Course:Certificate In Animal Health And Production

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
FIRST YEAR EXAMINATIONS FOR THE AWARD OF
CERTIFICATE IN ANIMAL HEALTH AND PRODUCTION
CHEM 00111: PHYSICAL –INORGANIC CHEMISTRY
STREAMS: CERT (ANHE) YISI TIME: 2 HOURS
DAY/DATE: TUESDAY 23/4/2013 2.30 PM – 4.30 PM
INSTRUCTIONS:

Answer all Questions in Section A and any Two in Section B.

SECTION A (30 MARKS)

QUESTION ONE

(a) Define the following terms:-
(i) Matter
(ii) Kinetic energy
(iii) Potential energy
(iv) Exothermic processes
(v) Endothermic processes.
(vi) Isotopes
(vii) Periodic table [7 Marks]

(b) State the following laws:-

(i) Law of conservation of matter
(ii) Law of conservation of energy [4 Marks]

(c) Differentiate between

(i) Chemical properties and physical properties
(ii) Chemical and physical change
(iii) Heterogeneous and homogeneous mixtures
(iv) Compound and element. [4 Marks]

(d) How many protons and neutrons are in
(i) ¦(11@5) Q

(ii) ¦(41@20) X

(iii) ¦(131@53)Y

(e) Define the following:

(i) Mole
(ii) Acid
(iii) Bases
(iv) Molarity [4 Marks]

(f) 25 ml of 0.25M Nacl solution was diluted to 250ml using distilled water. Determine the final concentration of the diluted solution. [3 Marks]

(g) A sample of oxygen occupies l0L under a pressure of 790 torr. At what pressure would it occupy 13.4 l if the temperature did not change. [3 Marks]

(h) A sample of Neon occupies 105 litres at 270C under a pressure of 985 torr. What volume
should it occupy at standard temperature and pressure. [2 Marks]

SECTION B:

(a) Define the following terms:-
(i) Ionisation energy
(ii) Electron affinity
(iii) Electronegativity [3 Marks]

(b) Explain briefly the following observations
(i) Alkali metals have low melting and boiling points
(ii) Alkali metals are excellent conductors [4 Marks]

(c) Give three properties of transition metals [3 Marks]

(d) List two structures formed by covalent bonds. [2 Marks]
(e) Differentiate between
(i) Polar and non polar covalent bond.
(ii) Covalent bond and a dative bond
(iii) Oxidation and reduction [6 Marks]

(f) Give two types of changes that can disturb the equilibrium of a reaction. [2 Marks]

QUESTION 3

(a) Define
(i) Chemical bond
(ii) Enthalpy
(iii) Heat of fusion [3 Marks]

(b) Differentiate between an tonic and a covalent bond. [2 Marks]

(c) Give 2 general properties of Ionic and 2 properties of covalent compounds.[4 Marks]

(d) Differentiate between monobasic and poly basic acids. [2 Marks]

(e) How many moles of Na metal are contained in 50g of Na (Na = 23) [3 Marks]

(f) A 20.882 gram sample of an ionic compound is found to contain 6.072 grams of Na, 8.474 of S and 6.336g of O. What is the simplest formula (Na=23,s=32.1 ,o=16)
[4 Marks]
(g) State the lechateliers principle. [2 Marks]

QUESTION 4

(a) Discuss briefly the three types of intermolecular forces. [6 Marks]

(b) Differentiate between

(a) Empirical and molecular formula
(b) Qualitative and quantitative analysis. [4 Marks]

(c) State the following gas laws
(a) Boyles law
(b) Charles law
(c) Avogadros law [3 Marks]

(d) A sample of nitrogen occupies 117 ml at 1000c. At what temperature in 0c would it occupy 234 ml if the pressure did not change. [3 Marks]

(e) Give 4 assumptions of the kinetic molecular theory of gases. [4 Marks]
---------------------------------------------------------------------------------------------------------------------

Chem 00111: Physical –Inorganic Chemistry Question Paper

More Question Papers

Popular Exams