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Chemistry

Chemistry
Which of the following has the highest lattice energy

CsF
KF
RbF
NaF

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Chemistry
What material is used to make electric heater coil ?

Silver
Copper
Nichrome
Iron

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Chemistry
Among the following, carbonate ore of Zinc is

Calamine
Sphalerite
Zincite
Zincblende

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Chemistry
Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ?

Hydrogen
Nitrogen
Sodium
Neon

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Chemistry
Baking soda is :

Sodium hydroxide
Sodium carbonate
Potassium carbonate
Sodium bicarbonate

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Chemistry
Select the one which is not a mixture :

Distilled water
LPG
Gasoline
Air

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