The p -Block Elements

Given below are two statements:

 Statement I : The pentavalent oxide of group-15 element, E₂O₅, is less acidic than trivalent oxide, E₂O₃, of the same element.

Statement II : The acidic character of trivalent oxide of group 15 elements, E₂O₃ decreases down the group.

In light of the above statements, choose most appropriate answer form the options given below:

Nitrogen gas is obtained by thermal decomposition of

A white precipitate was formed when BaCl₂ was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

Which of the following sets of quantum numbers is not allowed?

Given below are the oxides :

Na₂O, As₂O₃, N₂O, NO and Cl₂O₇

Number of amphoteric oxides is :

In a compound AOH, electronegativity of ' A' is 2.1, the compound would be

Nitric oxide is formed in the combustion of fuel. An internal combustion engine produces 600 ppm (600 mg L^-1) of NO was oxidized to NO₂. The NO₂ formed was dissolved in 10L of water. The pH of the resulting solution is

(log 2 = 0.30, log 3 = 0.48)

If Q is a colourless gas with rotten fish smell then select CORRECT statement.

Out of the following oxides of nitrogen how many of them are neutral oxides?

N₂O, NO, N₂O₃ , NO₂ , N₂O₄ , N₂O₅