Chemistry
Grade-8
Easy
Question
Hydrogen forms an explosive mixture in the air due to the presence of:
- Humidity
- Oxygen
- Nitrogen
- Carbon
Hint:
general properties of hydrogen.
The correct answer is: Oxygen
Hydrogen forms an explosive mixture in the air due to the presence of oxygen. because hydrogen is flammable in nature.
Related Questions to study
Chemistry
When calcium metal is heated with hydrogen gas, the product formed during this reaction is:
When calcium metal is heated with hydrogen gas, the product formed during this reaction is:
ChemistryGrade-8
Chemistry
The hydrogen can be liquifies only at _____oC and ____ atm pressure.
The hydrogen can be liquifies only at _____oC and ____ atm pressure.
ChemistryGrade-8
Chemistry
Which of the following reaction does depict the reducing property of hydrogen?
Which of the following reaction does depict the reducing property of hydrogen?
ChemistryGrade-8
Chemistry
Hydrogen is a colorless, tasteless and ________gas.
Hydrogen is a colorless, tasteless and ________gas.
ChemistryGrade-8
Chemistry
The mixture of hydrogen and oxygen is called:
The mixture of hydrogen and oxygen is called:
ChemistryGrade-8
Chemistry
Hydrogen gas burns with the oxygen to produce:
Hydrogen gas burns with the oxygen to produce:
ChemistryGrade-8
Chemistry
Hydrogen and nitrogen reacts with each other to form ammonia at a specific temperature and pressure. Identify the correct reaction conditions for the formation of ammonia
Hydrogen and nitrogen reacts with each other to form ammonia at a specific temperature and pressure. Identify the correct reaction conditions for the formation of ammonia
ChemistryGrade-8
Chemistry
When the 1 volume of hydrogen and 1 volume of chlorine is allowed to react in the presence of sunlight it gives:
When the 1 volume of hydrogen and 1 volume of chlorine is allowed to react in the presence of sunlight it gives:
ChemistryGrade-8
Chemistry
Identify the weak electrolytes from the following?
Identify the weak electrolytes from the following?
ChemistryGrade-8
Chemistry
Which of the following acid is used to make sodium chloride
Which of the following acid is used to make sodium chloride
ChemistryGrade-8
Chemistry
Identify the metal that does not react explosively with dilute acid from the following:
Identify the metal that does not react explosively with dilute acid from the following:
ChemistryGrade-8
Chemistry
What kind of salt is obtained from the reaction of sulphuric acid?
What kind of salt is obtained from the reaction of sulphuric acid?
ChemistryGrade-8
Chemistry
What happens when sample of platinum is placed in the dilute acid?
What happens when sample of platinum is placed in the dilute acid?
ChemistryGrade-8
Chemistry
Arrange the following metals in the increasing order of the number of hydrogen molecules liberated when 1 molecule/atom of the metal reacts with water/ steam.
(i). Fe
(ii). Ca
(iii). Al
(iv). Na
Arrange the following metals in the increasing order of the number of hydrogen molecules liberated when 1 molecule/atom of the metal reacts with water/ steam.
(i). Fe
(ii). Ca
(iii). Al
(iv). Na
ChemistryGrade-8
Chemistry
Identify the correct chemical reaction, for the formation of hydrogen gas from iron and dilute hydrochloric acid:
Identify the correct chemical reaction, for the formation of hydrogen gas from iron and dilute hydrochloric acid:
ChemistryGrade-8