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776
For a general equation of the nature xP + yQ ≈ mR + nS, the expression for the equilibrium constant is?
  • A. k (p)x (Q)y
  • B. (p)x (Q)y / (R)m (S)n
  • C. (R)m (S)n / (p)x (Q)y
  • D. m(R) n (S) / x(P) y (Q)
View Answer & Discuss JAMB 1992
777

Which of these statements is TRUE about carbon (IV) oxide?

  • A. it supports combustion
  • B. It is strongly acidic in water
  • C. It is very soluble in water
  • D. It supports the buring of magnesium to produce magnesium oxide
View Answer & Discuss (18) JAMB 1992
778

Which of the following combination of gases is used for metal welding? i. Oxygen and ethyne, ii. Hydrogen and ethyne, iii. Hydrogen and oxygen, iv. Ethyne, hydrogen and oxygen.

  • A. i and ii
  • B. ii and iv
  • C. i and iii
  • D. ii and iv
View Answer & Discuss (6) JAMB 1992
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779
Which of the following oxides of nitrogen is unstable in air?
  • A. NO2
  • B. NO
  • C. N2O4
  • D. N2O5-
View Answer & Discuss (2) JAMB 1992
780
The gas formed when ammonium trioxonitrate (V) is heated with sodium hydroxide is?
  • A. hydrogen
  • B. nitrogen (IV) oxide
  • C. oxygen
  • D. ammonium
View Answer & Discuss (15) JAMB 1992
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