Search SchoolNGR

Wednesday, 01 April 2026
Register . Login

Chemistry Past Questions and Answers

Chemistry Questions

Question 1151:
Which of the following represent hybridization in ethyne?
  • A Sp2
  • B Sp2d
  • C Sp3
  • D Sp
View Answer & Explanation
Question 1152:
C12H22O11(s) + H2SO4(aq) 12C(s) + 11H2O(l) + H2SO4(aq)
In the reaction above, tetraoxosulphate (VI) acid function as
  • A A dehydrate agent
  • B An oxidizing agent
  • C A reducing agent
  • D A catalyst
View Answer & Explanation
Question 1153:
When sodium reacts with water, the resulting solution is
  • A Weakly acidic
  • B Neutral
  • C Acidic
  • D Alkaline
View Answer & Explanation
Question 1154:
Which of the following gases contains the least number of atoms at s.t.p?
  • A 1 mole of butane
  • B 3 mole of ozone
  • C 4 mole of chlorine
  • D 7 mole of argon
View Answer & Explanation
Question 1155:
Use the graph above to answer this question.If the gas is cooled, at what temperature will it start to condense?
  • A 125 oC
  • B 150oC
  • C 175oC
  • D 250oC
View Answer & Explanation