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- 1. Multiple Choice
Metals can be beaten into thin sheets.Which property does it show?
ductility
lustre
malleabilty
conductivity
- 2. Multiple Choice
Almost all metals are very hard and non-metals are not very hard.Which following pair is an exception to this statement?
sodium and sulphur
potassium and carbon
sodium and diamond
iron and phosphorous
- 3. Multiple Choice
Magnesium ribbon burns to produce MgO and this oxide further reacts with water to give rise to Mg (OH)2, which changes red litmus to blue one.What is the nature of this compound?
Acidic
Basic
both acidic and basic
none of these
- 4. Multiple Choice
What is the correct equation for reaction between Sodium hydroxide and aluminium?
NaOH + Al ----> NaAlO2 + H2
NaOH + Al --------> NaAl + H2O
NaOH + Al -------> Na3Al + O2
None of these
- 5. Multiple Choice
Which of the following metals are more active with water ?
Magnesium and Iron
Aluminium and Copper
Sodium and Potassium
Mercury and Zinc
- 6. Multiple Choice
Which of the following non-metal solution is used as antiseptic on wounds?
sulphur
iodine
chlorine
nitrogen
- 7. Multiple Choice
Name the Non-metal used in the given materials shown in the picture.
Nitrogen
phosphorus
sulphur
carbon
- 8. Multiple Choice
In a reaction one element removes the less reactive element from a compound and it forms its respective salt.Which chemical reaction is this?
Neutralization reaction
displacement reaction
Both neutralization and displacement reaction
none of these
- 9. Multiple Choice
What will happen when we add Iron nails in copper sulphate solution .Choose the correct option
CuSO4 + Fe -----> FeSO4 + CuSO4
CuSO4 + I ------> ISO4 + Cu
CuSO4 + Fe ------> FeSO4 + Cu
All of the above
- 10. Multiple Choice
Arrange the metals copper, zinc and iron in their increasing order of their reactivity.
copper,iron,zinc
iron,copper,zinc
copper,zinc,iron
iron,zinc,copper
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