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Question
Multiple Choice Question
Water gas is a mixture of
Options
carbon monoxide and oxygen
carbon monoxide and hydrogen
hydrogen and oxygen
hydrogen and nitrogen.
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Solution
carbon monoxide and hydrogen
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MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
Where does hydrogen occur in a free state?
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A monovalent metal
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Starting from hydrogen gas how would you obtain a basic gas.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
Give a balanced equation for the following conversion.
\[\ce{MgCl2<-HCl->FeCl2}\]
Give a balanced equation for the following conversion.
\[\ce{KAlO2<-KOH->K2ZnO2}\]
