A. galena B. bauxite C. emerald D. nitrochalk Correct Answer: Option B - bauxite Explanation Bauxite ore can help you…
A. increase in freezing point and increase the boiling point B. increase in freezing point and decrease the boiling point…
A. C2H5OH B. C3H4 C. C6H6 D. CH3COOH Correct Answer: Option D = CH3COOH Explanation Carboxylic acids and enols react…
A. iron(ii)Sulphide B. tin(ii)sulphide C. Zinc Sulphide D. lead(iv) Sulphide Correct Answer: Option C - Zinc Sulphide Explanation ZnS (Zinc…
A. 18 B. 20 C. 37 D. 17 Correct Answer: Option B = 20 Explanation The mass number = number…
A. phosphorus B. sulphur C. carbon D. chlorine Correct Answer: Option C - carbon Explanation The oxides which neither react…
A. composition B. dissociating ability C. stability to heat D. precipitating ability Correct Answer: Option C - stability to heat…
A. chromium(vi)oxide B. iron(iii)oxide C. copper(i)oxide D. vanadium(v)oxide Correct Answer: Option D = vanadium(v)oxide Explanation During the Contact Process for…
A. 3-chloro-3-methylbutane B. 2,2,-dichloro-3-methylbutane C. 3-methylchlorobutane D. 2-chloro-2-methylbutane Correct Answer: Option D - 2-chloro-2-methylbutane Explanation Straight-chain hydrocarbon molecules that contain…
A. neutron and proton B. proton and electron C. proton and ions D. neutron and electron Correct Answer: Option A…