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प्रश्न
Give an example of the following chemical change.
Two gases combine to form white solid
उत्तर
\[\ce{Nh3_(_g_) + HCI_(_g_) ⇌ NH4CI_(_s_)}\]
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संबंधित प्रश्न
Give one example that illustrates the following characteristics of a chemical reaction:
Change in state
Complete and balance the following chemical equations:
Fe `"SO"_4` + NaOH `→`
(aq.) (aq.)
What do you observe when Iron nail is kept in copper sulphate solution for sometime.
Give an example of a reaction where the following are involved:
Solution
Write the chemical reaction where the following changes are observed.
Colour change is noticed
What do you observe? When
Barium chloride is added to sodium sulphate solution
What do you observe? When
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Name the following:
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Name the following:
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Copper nitrate to nitrogen dioxide
Give a suitable example with an equation to show the representation of a chemical reaction.
Higher order Thinking question
A very hot glass on putting in cold water cracks. What does this change indicate?
Limestone contains ______ mainly.
Silver metal can displace hydrogen gas from nitric acid.
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What is the use of indicator?
______ is a natural indicator.
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- The dirt surrounded by the detergent molecules floats in the water making it dirty.
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