43
Which of the following non-metals reacts most readily with metals?
- A. Carbon
- B. Chlorine
- C. Nitrogen
- D. Phosphorus
- E. Sulphur
44
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
- A. alkanal
- B. alkane
- C. alkanoate
- D. alkene
- E. alkyne
45
The process involved in the decomposition of sugar by an enzyme is called
- A. dehydration
- B. esterification
- C. fermentation
- D. polymerization
- E. saponification
46
Which of the following equations is NOT balanced?
- A. CH4(g) + 202(9) → CO2(g) + 2H2O(g)
- B. CU(S) + HNO3(aq) → Cu(NO3)2(aq) + 4H2O(I) + NO(g)
- C. 2KCIO3(s) → 2KCI(s)+ 3O2(g)
- D. NaH(s) + H2O(1) → NaOH(aq) +H2(g)
- E. Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCl(aq)
47
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
- A. ammonia
- B. carbon(IV)oxide
- C. hydrogen chloride
- D. sulphur (IV) oxide
- E. sulphur (VI) oxide