A. hydrochloric acid B. calcium hydrochloride C. kerosene D. water Correct Answer: Option C - kerosene Explanation Kerosene is the…
A. increase the solubility of soap B. decrease the solubility of the soap C. saponify the soap D. emulsify the…
A. Pb B. Ca C. Na D. Mg Correct Answer: Option B = Ca Explanation Calcium is the only metal…
A. Chlorine B. Nitrogen C. Calcium D. Neon Correct Answer: Option B - Nitrogen Explanation Nitrogen has an electronic configuration…
A. cathode-ray tube B. glass tube and discharge tube C. discharge tube with terminal cathode D. discharge tube with central…
A. bromine water B. Fehling’s solution C. sodium hydrogen trioxocarbonate (iv) D. Ammoniacal silver trioxonitrate(V) Correct Answer: Option C -…
A. electrons B. Holes and electron C. Ions D. Charges Correct Answer: Option C - Ions
A. are positively charged B. are negatively charged C. Have mass D. travel in straight lines Correct Answer: Option D…
A. nitrogen B. aluminum C. copper D. sulphur Correct Answer: Option D - sulphur Explanation Sulphur is an element that…
A. ionic B. covalent C. co-ordinate covalent D. van der Waals Correct Answer: Option D = van der Waals Explanation…