Chemistry
Grade-8
Easy
Question
The most stable isotopes among all naturally occurring isotopes are:
- Protium
- Deuterium
- Tritium
- Both A and B
Hint:
It has a proton and two neutrons.
The correct answer is: Tritium
The correct option is c)Tritium.
The half-life is about 12.32 years. Tritium is the most stable radioactive isotope of hydrogen. That is, tritium is the least radioactive of all radioactive isotopes of hydrogen. Four other radioactive isotopes of hydrogen were created by the researchers, but these isotopes are highly volatile and simply do not exist.
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A promoter used in the Bosch process:
A promoter used in the Bosch process:
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During the bosh process to prepare Hydrogen, some carbon dioxide is also obtained as a by-product. Write a chemical equation to remove this carbon dioxide by using caustic potash.
During the bosh process to prepare Hydrogen, some carbon dioxide is also obtained as a by-product. Write a chemical equation to remove this carbon dioxide by using caustic potash.
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During the preparation of Hydrogen by the laboratory method. Arrange these steps in proper order.
1. Fix a two-holed airtight stopper in the mouth of the flask.
2. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
3. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
4. Now pour some dilute hydrochloric acid through the thistle funnel.
Place another end of the delivery tube inside the beehive shelf kept in a water trough.
During the preparation of Hydrogen by the laboratory method. Arrange these steps in proper order.
1. Fix a two-holed airtight stopper in the mouth of the flask.
2. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
3. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
4. Now pour some dilute hydrochloric acid through the thistle funnel.
Place another end of the delivery tube inside the beehive shelf kept in a water trough.
ChemistryGrade-8
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State whether the following are true or false.
(i). Hydrogen is the most abundant element in the universe but is only available in very few quantities.
(ii). Commercially the hydrogen gas can be prepared by electrolysis of water.
(iii). The Bosch process can also prepare Hydrogen from natural gas, which contains ethane as the main ingredient.
State whether the following are true or false.
(i). Hydrogen is the most abundant element in the universe but is only available in very few quantities.
(ii). Commercially the hydrogen gas can be prepared by electrolysis of water.
(iii). The Bosch process can also prepare Hydrogen from natural gas, which contains ethane as the main ingredient.
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Dry Hydrogen is collected by downward displacement as it is:
Dry Hydrogen is collected by downward displacement as it is:
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Which scientist first prepared the Hydrogen gas?
Which scientist first prepared the Hydrogen gas?
ChemistryGrade-8
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Identify the least stable isotopes from all synthesized isotopes shown the below:
Identify the least stable isotopes from all synthesized isotopes shown the below:
ChemistryGrade-8
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As Hydrogen gas is explosive, the precaution that must take in the laboratory is that:
As Hydrogen gas is explosive, the precaution that must take in the laboratory is that:
ChemistryGrade-8
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Why only granulated zinc is preferred for the laboratory reparation of Hydrogen?
Why only granulated zinc is preferred for the laboratory reparation of Hydrogen?
ChemistryGrade-8
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During the Bosch process, steam is passed over hot coke at a very high temperature in the furnace. This furnace is known as:
During the Bosch process, steam is passed over hot coke at a very high temperature in the furnace. This furnace is known as:
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In the laboratory preparation of Hydrogen, dilute nitric acid cannot be used because:
In the laboratory preparation of Hydrogen, dilute nitric acid cannot be used because:
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During the discovery of Hydrogen, which of the following scientist give the name Hydrogen?
During the discovery of Hydrogen, which of the following scientist give the name Hydrogen?
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What are the products obtained in the following reactions?
What are the products obtained in the following reactions?
ChemistryGrade-8
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The metal that acts as a catalyst in the laboratory preparation of Hydrogen is:
The metal that acts as a catalyst in the laboratory preparation of Hydrogen is:
ChemistryGrade-8
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Identify the radioactive isotope from the following?
Identify the radioactive isotope from the following?
ChemistryGrade-8
