A. lithium B. magnesium C. potassium D. calcium E. aluminium Correct Answer: Option E - aluminium
A. -46KJ mol -1 B. -184KJmol -1 C. -92KJmol -1 D. 184KJmol -1 E. +46KJmol -1 Correct Answer: Option A…
A. plastic sulphur B. amorphous sulphur C. rhombic sulphur D. monoclinic sulphur E. colloidal sulphur Correct Answer: Option C -…
A. Aluminium chloride B. Zinc chloride C. Silver chloride D. Mercury (ll) chloride E. lron (ll) chloride Correct Answer: Option…
A. heptane B. octane C. 2-methylpentane D. 2, 4-dimethylpentane E. 2,2,4-trimethylpentane Correct Answer: Option E - 2,2,4-trimethylpentane
A. using Zinc powder instead of Zinc granules B. using dilute instead of concentrated hydrochloric acid C. cooling the container…
A. Pure sodium chloride does not conduct electricity B. Potassium fluoride prevents the sodium produced from attacking the electrodes C.…
A. sodium ions B. potassium ions C. lithium ions D. calcium ions E. magnesium ions Correct Answer: Option B -…
A. roasting the impure copper in a blast furnace B. heating the oxide with coke C. electrolyzing a copper (ll)…
A. Fructose B. Glucose C. Sucrose D. Maltose E. Cellulose Correct Answer: Option E - Cellulose