ENTRANCE TEST – 2008 Multiple Questions and Answers.




21.he elements of IIIA to VIIIA subgroups except He are known as __________ block elements.
A. q.
B. S.
C. p.
D. None of these

22. Concentrated nitric acid gives __________ when it reacts with tin.
A. Nitric oxide
B. Meta stannic acid.
C. Aluminum Nitrite
D. None of these

23.Sulphuric acid is used to manufacture
A. HCl and HNO3.
B. H3PO4.
C. Both A and B.
D. Both HCl and 2COOH.

24. Alkanes containing __________ carbon atoms are waxy solids.
A. Up to 4
B. 5 to 17
C. 18 or more.
D. None of these

25. Which of the following is used to make chloral hydrate?
A. Acetaldehyde.
B. Formaldehyde.
C. Both A and B
D. None of these

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