Answers The formula of a compound formed in a reaction between a trivalent metal M and… The formula of a compound formed in a reaction between a trivalent metal M and a tetravalent non-metal X is~? A. MX B. M3X4 C. M4X3 D. M3X2 Correct Answer: Option C Explanation M2+ + X-4 = M4X3
Answers Giving different examples, mention one metal in each case which produces hydrogen on reacting… (a) Giving different examples, mention one metal in each case which produces hydrogen on reacting with (i) dilute… Read More
Answers (i) Name three different methods for preparing salts. (ii) Give one example of a balanced equation for… (a) (i) Name three different methods for preparing salts. (ii) Give one example of a balanced equation for each of the… Read More
Answers Which of the following is NOT caused by bacteria? Which of the following is NOT caused by bacteria? A. Cholera B. Gonorrhoea C. Tuberculosis D. Onchoceriasis E.… Read More
Answers A major cause of depopulation in Nigeria in the 18th century was A major cause of depopulation in Nigeria in the 18th century was A. the trans-Atlantic slave trade B.… Read More
Answers The planet with rights of circular light and dark bands is the The planet with rights of circular light and dark bands is the A. mars B. mercury C. jupiter… Read More