Atomic size decreases?
A. across a period from left to right B. across a period from right to left C. diagonally down the group D. down a group E. with decrease in atomic number Correct Answer: Option A – across a period from left to right
Sulphur has an oxidation number of +4 in?
A. H2S B. H2SO4 C. MgSO4 D. Na2SO3 E. S03 Correct Answer: Option D – Na2SO3
If the volume of a gas at 35°C is 60cm³, what would be its volume in cm³ at 273k?
A. 39.03 B. 46.81 C. 53.18 D. 67.69 E. 76.92 Correct Answer: Option C – 53.18
What is the molar mass of the compound below?
A. 45 B. 61 C. 122 D. 123 E. 244 Correct Answer: Option C – 122Products
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