Time: 1:30 Hr. Monthly Class Test (Sept, 2015) F.M.: 50
(Answer question no. 1 and any five questions from Group-B)
1. Answer any ten questions: -1x10=10
1.1 Name an isomer od dimethyl ether?
1.2 Which one is greater among 00C and 00F?
1.3 Find the number of molecules in 1.8 gm of water.
1.4Name the heaviest particle of an atom.
1.5 What is the unit of specific heat?
1.6 What is the value of standard temperature in Absolute Scale?
1.7 How many neutrons are present in 92U235?
1.8 Give an example of three carbon containing hydrocarbon?
1.9 How many oxygen atoms are present in 1 mole of CO2?
1.10 Write general formula of alkene.
1.11 Name an atom which do not have any neutron.
1.12 Name a biomolecule.
1.13 What is the temperature difference between 30oC and 300K ?
(Answer any five questions): 8X3=24
2.1 What is the difference between heat and temperature? 3
2.2 If the increase in temperature in Fahrenheit scale is 720. What will be the difference in Celsius scale? 2
2.3 What is thermal equivalent? Write SI unit. 2+1
3.1 1H1, 1H2, 1H3 – what is the relation among them? In the nucleus of which of them there is no neutron? 1+1
3.2 What is absolute zero temperature? What is its value in Celsius Scale?
3.3 What is the value of standard pressure? Why are pressure and temperature to be mentioned when the volume of a definite mass of gas is mentioned? 1+2
4.1 Write down the three postulates of Dalton’s Theory. 3
5.2 Write one similarity and one dissimilarity between solar system and atomic structure. 2