1. Element 'P' react with steam and the reaction is reversible.
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2. Element 'X' does not form an oxide.
3. Element 'Y' reacts violently with cold water.
4. Element 'Z' reacts less vigorously with cold water to form a hydroxide.
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Height of the cylindrical part =13cm
Radius of cone , cylinder and hemi sphere=5cm
r=5cm for hemisphere cylinder and cone.
Height of cone h=30−5−13=12
The area of canvas required=Surface area of hemishphere,cylinder and cone parts of tent
A=2πr
2+2πrH+πr( h2 +r2 )A=2π×5×5+2π×5×13+π×5( 5 2 +122 ) A=770cm2
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