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WorksheetsICSE-X HCl (Page 89,90,91)
Total questions: 20
Worksheet time: 11mins
Acid used in preparation of HCl gas
Conc H2SO4
Conc HNO3
What makes HCl polar covalent
Ionisation potential
Electron affinity
Electronegativity
What factors doesn’t support preparation of HCl by synthesis
Direct sunlight
Diffused sunlight
Moisture
HCl gas is collected by
Downward displacement of air
Upward displacement of air
Which of the following compounds cannot be used as drying agent in the laboratory preparation of HCl gas
Conc H2SO4
CaO
P2O5
What special arrangement is done on apparatus to convert HCl gas to HCl acid
Introducing empty flack between round bottomed flask and jar
Introducing Woulfs’s bottle
Inverted funnel fixed to the delivery tube
Why lower end of thistle funnel should be dip below the liquid level in flask
To mixed reactants properly
To release Conc H2SO4
To prevent HCl gas formed to intervene with Acid
When thistle funnel is not dipped below the solution what actually happens to HCl gas due to H2SO4
They both form mixture
HNO3 is concentrated
H2SO4 is concentrated
What happens in Woulfe’s bottle during laboratory preparation of HCl gas
HCl gas is converted to HCl acid
HCl is dried
Which of the following compound is formed as hard crust in laboratory preparation of HCl gas
Na2SO4
NaHSO4
Na2CO3
Absence of inverted funnel may cause / provide
Back suction, low surface area
Back suction, large surface area
Which of the following reactants are used to confirm HCl gas and what is the observation ?
Ammonia , dense white fumes
Silver nitrate , dense white fumes
Manganese dioxide , dense white fumes
Formation of chalky white ppt tests
HCl gas
Conc HCl
HCl acid
Which gas is released while testing Conc HCl
Oxygen
Nitrogen
Chlorine
MnO2 behaves as
Oxidising agent
Reducing agent
The limitation of solubility of HCl gas in water is restricted to
22%
36%
What is the AIM of inverted funnel arrangement
To prevent back suction
To prove HCl gas is highly soluble in water
To prepare relatively more amount of HCl acid
Which of the following cannot be used as confirmatory test for CO2 gas
KMnO4
K2Cr2O7
Ca(OH)2
Relative molecular mass of Hydrogen chloride gas is
36
36.5
35
35.5
Conc sulphuric acid being less volatile can displace HCl from its metal chlorides due to its
High boiling point
Low boiling point
