A. lead and tin
B. iron and carbon
C. copper and tin
D. aluminium and copper
E. lead and antimony

Correct Answer:

Option A – lead and tin

SEE ALSO  The mass of 800cm³ of a gas X at s.t.p. is 1.0g. What is the molar mass of X? [1 mole of a gas at s.t.p occupies 22.4dm³]

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