EASY
Earn 100

Give the chemical reaction of chlorine with HBr.

Important Questions on Group 17

EASY
Among the following reactions of hydrogen with halogens, the one that requires a catalyst is:
EASY
Choose the metalloid from the following elements:
MEDIUM
Reaction between X and Y forms a compound Z. In this reaction X loses electrons and Y gains electrons, then which of the following property is generally not shown by Z?
MEDIUM
Oxidising power increases from left to right in the order.
MEDIUM
An element X forms two oxides XO and XO2. The oxide XO is neutral but XO2 is acidic in nature. The element X is most likely to be
MEDIUM
HF has highest boiling point among hydrogen halides, because it has:
EASY
Which among the following is the strongest acid ?
MEDIUM
Na, Mg, Al and S belong to 3rd period of the periodic table. Out of these, the acidic oxide is formed by
MEDIUM
A piece of charcoal was heated over the flame of the burner. When it starts burning it is immediately dipped into a boiling tube containing water. Now, this solution is transferred to another boiling tube and a piece of litmus paper is dipped into it. What will be the observation?
MEDIUM
Chlorine on reaction with excess of ammonia gives nitrogen gas along with a compound XX reacts with Ca(OH)2 and gives Y, a colourless gas with pungent smell. Y on reaction with excess of chlorine gives Z and HCl. What is Z ?
MEDIUM

Four elements W, X, Y, and Z have atomic numbers 12,18, 4, and 16:

Which of the above will form an acidic oxide?

MEDIUM
At room temperature, the reaction between water and fluorine produces:
EASY
The non-metal that does not exhibit positive oxidation state is:
EASY
Arrange the hydra-acids of halogens in increasing order of acidity.
EASY
Which of the following statements is not true for halogens?
MEDIUM
The correct order of bond dissociation enthalpy of halogens is:
MEDIUM

An element X forms two oxides XO and XO2. The oxide XO is neutral but XO2 is acidic in nature.The element X is most likely to be 

 

MEDIUM
What happens when carbon dioxide gas is passed in lime water. (Write only chemical equation)