-1 is most common, but Cl can exhibit oxidation numbers from -1 to +7 in its compounds.
In ClO4-, the oxidation number of Cl is +7, and the oxidation number of each O is -2.
The oxidation number of Cl in potassium chlorate (KClO3) is +5. This is because the oxidation number of K is +1 and the oxidation number of O is -2. By using the sum of the oxidation numbers in the compound, the oxidation number of Cl can be calculated to be +5.
The oxidation number of S in S2Cl2 is +1. Each Cl atom has an oxidation number of -1, and since the molecule is neutral, the overall oxidation numbers of S must balance out to zero. Thus, the oxidation number of S in this compound is +1.
In TiCl4, the oxidation number of titanium (Ti) is +4 since each chlorine atom (Cl) has an oxidation number of -1. Overall, the sum of the oxidation numbers in TiCl4 equals zero, indicating a neutral compound.
The oxidation number of Cl in ClF3 is +3. This is because fluorine (F) is more electronegative than chlorine (Cl) and will take on an oxidation number of -1, leaving chlorine with an oxidation number of +3 to balance the overall charge of the compound.
Ca=+2 Cl=-1
The oxidation numbers for the atoms in the ionic compound KCl are K+1 and Cl-1.
In ClO4-, the oxidation number of Cl is +7, and the oxidation number of each O is -2.
The oxidation number of Cl in potassium chlorate (KClO3) is +5. This is because the oxidation number of K is +1 and the oxidation number of O is -2. By using the sum of the oxidation numbers in the compound, the oxidation number of Cl can be calculated to be +5.
The oxidation number of S in S2Cl2 is +1. Each Cl atom has an oxidation number of -1, and since the molecule is neutral, the overall oxidation numbers of S must balance out to zero. Thus, the oxidation number of S in this compound is +1.
+1 for Na -1 for Cl
In TiCl4, the oxidation number of titanium (Ti) is +4 since each chlorine atom (Cl) has an oxidation number of -1. Overall, the sum of the oxidation numbers in TiCl4 equals zero, indicating a neutral compound.
Cl,Br and Iodine may have oxidation no +1 and -1
The oxidation number of Cl in ClF3 is +3. This is because fluorine (F) is more electronegative than chlorine (Cl) and will take on an oxidation number of -1, leaving chlorine with an oxidation number of +3 to balance the overall charge of the compound.
The oxidation number of C in CCl4 is +4, while the oxidation number of Cl is -1. Each Cl atom in CCl4 has an oxidation number of -1, and since there are four Cl atoms, the total negative charge from Cl is -4. The sum of the oxidation numbers in a neutral compound is zero, so the oxidation number of C must be +4 to balance the charge.
In SOCl2, the oxidation numbers are as follows: Sulfur (S) has an oxidation number of +4 Oxygen (O) has an oxidation number of -2 Chlorine (Cl) has an oxidation number of -1
The compound has no charge. This means that the positive oxidation numbers must equal the negative oxidation numbers. Cl has an oxidation number of -1. Therefore, Zn must have an oxidation number of +1.