The source of electrical energy on the Apollo Moon flights was
Select an option to see the answer and solution.
Chemistry GK · all questionsThermochemistry
Thermochemistry
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
62
Questions
3/4
Page
Pick an option on a question to see the right answer and solution.
When ammonium chloride is dissolved in water, the solution becomes cold. The change is
Select an option to see the answer and solution.
Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers etc?
Select an option to see the answer and solution.
Among the following respiration is which type of process?
Select an option to see the answer and solution.
During the evaporation of a liquid
Select an option to see the answer and solution.
When a spoon is to be electroplated with nickel the spoon is
Select an option to see the answer and solution.
A conductivity cell is platinised
Select an option to see the answer and solution.
Which one among the following metals is more reactive than hydrogen?
Select an option to see the answer and solution.
Galvanised iron sheets are protected fromrusting due to presence of a layer of
Select an option to see the answer and solution.
Aluminium surfaces are of ten 'anodised'. This means the deposition of a layer of
Select an option to see the answer and solution.
If a refrigerator's door is kept open, then
Select an option to see the answer and solution.
A smuggler could not carry gold by depositing iron on the gold surface, because
Select an option to see the answer and solution.
What is an endothermic reaction?
Select an option to see the answer and solution.
Which of the following reaction is an example of exothermic reaction?
Select an option to see the answer and solution.
The depolarisation in a primary cells is used for the purpose of
Select an option to see the answer and solution.
When an acid cell is charged, then
Select an option to see the answer and solution.
To protect iron against corrosion, the durable metal plating on it, is
Select an option to see the answer and solution.
Consider the following statements.
The electrochemical series helps
1. in extraction of metals.
2. in protecting themetal fromcorrosion.
3. in comparing the reactivity of metals.
Which of the above is/are true?
The electrochemical series helps
1. in extraction of metals.
2. in protecting themetal fromcorrosion.
3. in comparing the reactivity of metals.
Which of the above is/are true?
Select an option to see the answer and solution.
Which of the following statements about the commonly used automobile battery are true?
1. It is usually a lead-acid battery.
2. It has six cells with a potential of 2V each.
3. Its cells work as galvanic cells while discharging power.
4. It cells work as electrolytic cells while recharging.
Select the correct answer:
1. It is usually a lead-acid battery.
2. It has six cells with a potential of 2V each.
3. Its cells work as galvanic cells while discharging power.
4. It cells work as electrolytic cells while recharging.
Select the correct answer:
Select an option to see the answer and solution.
In an electrochemical cell that functions as a voltaic cell
Select an option to see the answer and solution.