Polyatomicity is illustrated by molecules of?
A. sulphur B. carbon (IV) oxide C. noble gases D. liquefied oxygen E. liquefied nitrogen Correct Answer: Option A – sulphur
The following will decolourize acidified potassium tetraoxomanganate (VII) solution except?
A. sulphur (lV) oxide B. but-3-ene C. pentane D. hydrogen sulphide E. propyne Correct Answer: Option C – pentane
Tetraoxosulphate (lV) acid is described as strong acid because it is highly?
A. corrosive B. concentrated C. reactive D. soluble in water E. ionized in water Correct Answer: Option E – ionized in water
Which of the following would increase the rate of reaction of chips of a metal M as shown in the equation below? M(s) + 2HCI(aq) → MCI2(aq) + H2(g)
A. Diluting the hydrochloric acid B. Adding some distilled water C. Decreasing the temperature D. Grinding the metal into powder E. Increasing the pressure Correct Answer: Option D – Grinding the metal into powderProducts
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