30 August 2013

Chemistry Mcqs XII [300 MCQS All Chapters] Online Test 3

XII Chemistry Online Mcqs - All Chapters - Online Mcqs Test - 3

Chemistry Online Mcqs Test for class 12, Second Year, According to Karachi Board 300 Online Multiple Choice Questions
Q1. The trend of change in melting points and boiling points of elements in the period from left to right is graded
Q2. Which of the following is the general electronic configuration of transition elements?
Q3. Which of the following ions has the smallest radius?
Q4. Large amounts of atomic hydrogen are present in the atmosphere
Q5. Chemical formula of heavy water is
Q6. Hydrogen resembles with
Q7. Hydrogen was first prepared by Cavendish in 1766 by the action
Q8. Hydrogen is a very good
Q9. Hydrogen at the time of its generation during chemical reaction is in the form of atomic state and is called
Q10. Permanent hardness of water is due to
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