EASY
Earn 100

Carbon dioxide can be detected by the lime water test.

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Important Questions on Energy Transfers in Chemistry

EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes

The reaction in which heat is absorbed is called _____ reaction.

EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
A substance that is burnt to obtain heat energy is called a _____.
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Photosynthesis is a _____ reaction. (endothermic / exothermic)
MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
_____ is the process due to which the [H+] ions of an acid react completely or combine with the [OH-] ions of a base to give salt and water only. 
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Leaves carry out _____ to prepare food.
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
A liquid fuel used in homes is _____. (wood / kerosene)
MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes

The reaction which proceeds by the evolution of heat is known as _____ reaction.

EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes

Complete the given analogy:

Fruits : protect seeds :: leaves : _____.

(Mention the process)

MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes

Fill in the blanks by choosing the correct words from the list given below:
List: Galvanisation, physical, calcium carbonate, new, calcium hydroxide, energy, substance, saturated, sodium carbonate, moist.
When carbon dioxide gas is passed through lime water, it turns milky due to the formation of _____.

MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Good fuel requires _____ ignition temperature.
MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
_____ reagent can be used to distinguish a solution containing a lead salt from a solution containing zinc salt. 
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Lime water turning milky when carbon dioxide gas is passed through it is a _____ change. 
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
When carbon dioxide is passed through lime water, it turns milky due to the formation of _____. (Write the chemical name of the compound formed)
MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Green plants need _____ gas to prepare their food.
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
In _____ reactions, heat is liberated.
HARD
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
When carbon dioxide gas is passed through lime water, it turns _____.
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Plants produce their own food during the process of _____.
MEDIUM
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
When carbon dioxide is passed through lime water, it turns milky due to the formation of _____. (Write the name of compound)
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
Solid : wood :: liquid : _____. (hydrogen / kerosene)
EASY
Science>Chemistry>Energy Transfers in Chemistry>Exothermic and Endothermic Processes
_____ are obtained from natural fuels by various physical and chemical processes.