Chemistry
Grade-8
Easy
Question
When carbon dioxide reacts with sodium oxides, it gives ____
- Sodium hydroxide
- Sodium bicarbonate
- Sodium carbonate
- Both (b) and (c)
Hint:
Sodium carbonate is formed when sodium oxide reacts with carbon dioxide.
The correct answer is: Sodium carbonate
The water vapor in the carbon dioxide first reacts with the residual sodium to form sodium hydroxide, and then the carbon dioxide reacts with the sodium hydroxide to convert it into sodium carbonate.
Sodium carbonate is formed when sodium oxide reacts with carbon dioxide.
Related Questions to study
Chemistry
What are the products obtained from the following chemical reaction?
What are the products obtained from the following chemical reaction?
ChemistryGrade-8
Chemistry
Which of the following fertilizer is manufactured by using carbon dioxide?
Which of the following fertilizer is manufactured by using carbon dioxide?
ChemistryGrade-8
Chemistry
CaCO3 is the chemical formula for
CaCO3 is the chemical formula for
ChemistryGrade-8
Chemistry
When liquid CO2 is cooled at –78oC, it changes into snow-white compound called as
When liquid CO2 is cooled at –78oC, it changes into snow-white compound called as
ChemistryGrade-8
Chemistry
Which of the carbonates does not decompose to give carbon dioxide?
Which of the carbonates does not decompose to give carbon dioxide?
ChemistryGrade-8
Chemistry
Multiple True (T) – False (F) type of Question:
1. Most of the food contain compounds of carbon and oxygen.
2. Carbon monoxide is neither combustible nor a supporter of combustion.
3. Dry ice produces at a very low temperature.
Multiple True (T) – False (F) type of Question:
1. Most of the food contain compounds of carbon and oxygen.
2. Carbon monoxide is neither combustible nor a supporter of combustion.
3. Dry ice produces at a very low temperature.
ChemistryGrade-8
Chemistry
Which of the following statement is incorrect?
Which of the following statement is incorrect?
ChemistryGrade-8
Chemistry
In the laboratory preparation of carbon dioxide, the gas is collected by upward displacement of air because:
In the laboratory preparation of carbon dioxide, the gas is collected by upward displacement of air because:
ChemistryGrade-8
Chemistry
Which of the following gas is used as a refrigerant?
Which of the following gas is used as a refrigerant?
ChemistryGrade-8
Chemistry
What are the primary reactants required for the process of photosynthesis?
What are the primary reactants required for the process of photosynthesis?
ChemistryGrade-8
Chemistry
The nature of carbon dioxide is
The nature of carbon dioxide is
ChemistryGrade-8
Chemistry
Carbogen is a mixture that is used for artificial respiration. Identify the elements or the compounds from which the carbogen can be made from the following
Carbogen is a mixture that is used for artificial respiration. Identify the elements or the compounds from which the carbogen can be made from the following
ChemistryGrade-8
Chemistry
In the combined state, the carbon occurs as
In the combined state, the carbon occurs as
ChemistryGrade-8
Chemistry
Read the following paragraph carefully. To a small quantity of (X), a few drops of HCl are added. Consequently, a colorless, odorless gas (Y) is formed. This gas(Y) on passing through lime water turns it milky due to the presence of (Z), and then the milkiness disappears due to the formation of (W)
Identify the compounds X, Y, Z, and W in the above change.
Read the following paragraph carefully. To a small quantity of (X), a few drops of HCl are added. Consequently, a colorless, odorless gas (Y) is formed. This gas(Y) on passing through lime water turns it milky due to the presence of (Z), and then the milkiness disappears due to the formation of (W)
Identify the compounds X, Y, Z, and W in the above change.
ChemistryGrade-8
Chemistry
When carbon dioxide reacts with red hot coke, what will be the product formed?
When carbon dioxide reacts with red hot coke, what will be the product formed?
ChemistryGrade-8