caiorie Potenhally useful information. 4.1843I K -C + 273.15 760 mmHg= 1 atm 16 ounces-1 lb STP is exactly 1 atm and 0 1 Calorie 1000 calories 2.205 lbs. 1 kg 1. What is the correct name for P2Ss? a. phosphorus sulfide b. diphosphorus pentasulfide c. diphosphorus (V) sulfide d. diphosphorus tetrasulfide e. potassium sulfide What is the correct formula for tin (IV) sulfate? a. Sn(SO4h b. Sn(SO4) c. Sn (SO)s d. Sn (SO4)s e. SnSO 2. 3. Which is the correct formula for the polyatomic anion carbonate? ?.? b.Co, 2. ?. ??2 2. e. CO23 4. What is the formula of the binary compound formed from calcium and sulfur? a. CaS b. CaS2 c. CaSO4 d. Ca(SO4)2 e. These elements don\'t form a binary compound. 5. What is the oxidation state of iron in FeSO c. 0 d. +1 e, +2 Solution Q1) P2S5 (There are two phosphorus connected to five sulphur atoms) Hence the name of the compound will be diphosphorus pentasulfide which is Option B Q2) SO4 has an oxidation state of -2 on the whole ion, since Sn is present in +4 oxidation state ,hence one Sn will be connected to two SO4(2-) Therefore, final answer will be Sn(SO4)2 which is option a Q3) Correct answer is Option B In carbonate ion, carbon is present in +4 oxidation state, which is in this compound, since oxygen is present in -2 oxidation state CO3(2-) is correct choice Q4) Correct answer is Option A Calcium generally exists in +2 and sulphur in -2 oxidation state, hence one calcium will be attached to one sulphur Hence the formula will be CaS Q5) SO4 exists in -2 oxidation state Hence Fe will be in + 2 state, since the overall compound is neutral in nature Correct answer is Option E .

1. caiorie Potenhally useful information. 4.1843I K -C + 273.15 760 mmHg= 1 atm 16 ounces-1 lb
STP is exactly 1 atm and 0 1 Calorie 1000 calories 2.205 lbs. 1 kg 1. What is the correct name
for P2Ss? a. phosphorus sulfide b. diphosphorus pentasulfide c. diphosphorus (V) sulfide d.
diphosphorus tetrasulfide e. potassium sulfide What is the correct formula for tin (IV) sulfate? a.
Sn(SO4h b. Sn(SO4) c. Sn (SO)s d. Sn (SO4)s e. SnSO 2. 3. Which is the correct formula for the
polyatomic anion carbonate? ?.? b.Co, 2. ?. ??2 2. e. CO23 4. What is the formula of the binary
compound formed from calcium and sulfur? a. CaS b. CaS2 c. CaSO4 d. Ca(SO4)2 e. These
elements don't form a binary compound. 5. What is the oxidation state of iron in FeSO c. 0 d. +1
e, +2
Solution
Q1)
P2S5 (There are two phosphorus connected to five sulphur atoms)
Hence the name of the compound will be diphosphorus pentasulfide which is Option B
Q2)
SO4 has an oxidation state of -2 on the whole ion, since Sn is present in +4 oxidation state
,hence one Sn will be connected to two SO4(2-)
Therefore, final answer will be Sn(SO4)2 which is option a
Q3)
Correct answer is Option B
In carbonate ion, carbon is present in +4 oxidation state, which is in this compound, since
oxygen is present in -2 oxidation state
CO3(2-) is correct choice
Q4)

2. Correct answer is Option A
Calcium generally exists in +2 and sulphur in -2 oxidation state, hence one calcium will be
attached to one sulphur
Hence the formula will be CaS
Q5)
SO4 exists in -2 oxidation state
Hence Fe will be in + 2 state, since the overall compound is neutral in nature
Correct answer is Option E