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प्रश्न
Choose terms from the options given in brackets to complete this sentence.
A metal …………….. hydrogen in the activity series gives hydrogen with …………… acid or …………… acid.
(above, below, dilute hydrochloric, concentrated hydrochloric, dilute sulphuric).
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उत्तर
A metal above hydrogen in the activity series gives hydrogen with dilute hydrochloric acid or dilute sulphuric acid.
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संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
The hydrogen molecule is monovalent.
Hydrogen is combustible as well as a supporter of combustion.
Give reason for the following:
Helium replaced hydrogen in weather observation balloons?
Give a balanced chemical equation for the reaction.
Multiple Choice Question
Hydrogen is responsible for producing
Multiple Choice Question
Hydrogen is
FILL IN THE BLANK
In nature, hydrogen occurs as a .................. molecule represented as H2
Why is hydrogen called a reducing agent? Give chemical equation to support your answer ?
Give the balanced equation of the reaction.
Choose the correct option:
The composition of the nucleus of deuterium is
Give balanced equation for the following conversion:
Water gas to hydrogen – industrially.
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
Give a chemical test to distinguish between the following gases:
Hydrogen and oxygen
Give a chemical test to distinguish between the following gases:
Ammonia and hydrogen chloride
Write a correctly balanced equation for the following:
When steam is passed over red hot iron.
Explain the following:
Two jars of H2 are collected – “one burns quietly and the other does not”.
Complete and balance the following equations:
Al + NaOH + ____ → ____ + ____
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
