Chemistry
Grade-6
Easy
Question
Which of the following gases is almost 1.5 times heavier than air?
- Carbon dioxide
- Nitrogen
- Oxygen
- Water vapors
Hint:
For an ideal gas, the density is just the molecular weight of the gas, divides by the volume of a given number of molecules. Since a given number of molecules always takes up the same volume for gas, the higher the molecular weight, the heavier the gas is or the heavier the density.
The correct answer is: Carbon dioxide
Carbon dioxide is almost 1.5 times heavier than air
Related Questions to study
Chemistry
Match column A (inert gases) with column B (uses of inert gases).
Match column A (inert gases) with column B (uses of inert gases).
ChemistryGrade-6
Chemistry
______________ dissolved in water helps in the photosynthesis of aquatic plants.
______________ dissolved in water helps in the photosynthesis of aquatic plants.
ChemistryGrade-6
Chemistry
The amount of moisture present in the air is known as the
The amount of moisture present in the air is known as the
ChemistryGrade-6
Chemistry
The carbon dioxide gas is __________soluble in water.
The carbon dioxide gas is __________soluble in water.
ChemistryGrade-6
Chemistry
When the water vapor freezes into the ice and falls on the ground as light white flakes, this form of water vapor is known as
When the water vapor freezes into the ice and falls on the ground as light white flakes, this form of water vapor is known as
ChemistryGrade-6
Chemistry
A tiny water droplet formed near the ground when vapor in the air condenses is known as
A tiny water droplet formed near the ground when vapor in the air condenses is known as
ChemistryGrade-6
Chemistry
Which of the components are used to prepare fertilizers like urea from the following?
Which of the components are used to prepare fertilizers like urea from the following?
ChemistryGrade-6
Chemistry
Identify the gas which is responsible for the depletion of the ozone layer.
Identify the gas which is responsible for the depletion of the ozone layer.
ChemistryGrade-6
Chemistry
An excess of_________ in the air causes respiratory problems.
An excess of_________ in the air causes respiratory problems.
ChemistryGrade-6
Chemistry
Read the following paragraph carefully and fill in the blanks.
Gases like ____P_____ and nitrogen dioxide get mixed in the rainwater to form acids like Q and R. When these Q and R combine with the rain, they make the rain acidic and become part of the ____S _____. Such acidic rain is known as acid rain.
Read the following paragraph carefully and fill in the blanks.
Gases like ____P_____ and nitrogen dioxide get mixed in the rainwater to form acids like Q and R. When these Q and R combine with the rain, they make the rain acidic and become part of the ____S _____. Such acidic rain is known as acid rain.
ChemistryGrade-6
Chemistry
Which of the following are the major causes of air pollution?
(i) 
(ii) 
(iii) 
(iv) 
Which of the following are the major causes of air pollution?
(i) (ii)
(iii) (iv)
ChemistryGrade-6
Chemistry
After carbon dioxide, which of the following is the biggest contributor to greenhouse gas?
After carbon dioxide, which of the following is the biggest contributor to greenhouse gas?
ChemistryGrade-6
Chemistry
Identify the pollutants which are not present in the suspended form from the following.
Identify the pollutants which are not present in the suspended form from the following.
ChemistryGrade-6
Chemistry
The gas like carbon monoxide, when combined with blood’s hemoglobin, forms a stable compound which is known as
The gas like carbon monoxide, when combined with blood’s hemoglobin, forms a stable compound which is known as
ChemistryGrade-6
Chemistry
Which of the following air pollutant is not a secondary pollutant from the following?
Which of the following air pollutant is not a secondary pollutant from the following?
ChemistryGrade-6
