An element B forms an oxide B,`O_(3)`. Find its valency and write the formula of its bromide.

An element has valency 3. Write the formula of its oxide.

An element Z forms an oxide with formula Z,O3. What is its valency?

An element Z forms an oxide with formula Z_(2)O_(3) . What is its valency ?

An element B show valencies of 4 and 6. Write the formulae of its two oxides.

An element A forms an oxide A_2O_5 . What is the valency of element 'A' ?

An element 'a' forms an oxide A_2O_5 . What will be the formula of chloride of 'A'?

The valency of an element A is 4. Write the formula of its oxide.

An element Z has valency of 3. Write down the formula of its oxide?

Consider the following statements about an element 'X' with number of protons 13 (A) It forms amphoteric oxide (B) Its valency is three (C) The formula of its chloride is XCl_(3) The correct statements(s) is/are