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Class 10 Science Acid base and Salts Very Short questions Fill in the blanks:
Binary acid contain __________ atom.
Chemical formula of baking soda is _____________
An acid that contains more than one acidic hydrogen atom is called a ________ .
When an acid reacts with a metal, _______ gas is evolved and a corresponding ________ is formed.
When an acid reacts with a metal carbonate or metal hydrogencarbonate, it gives the corresponding salt, ________ gas and _________.
_________ is the fixed number of water molecules chemically attached to each formula unit of a salt in its crystalline form.
Phenolphthalein and methyl orange are_________indicators.
Anhydrous sodium carbonate is commonly known as _________ .
Soda acid fire extingunisher contains a solution of sodium hydrogen carbonate and ___.
All alkali are bases but all bases are ______ alkali.
Alkali reacts with ammonium salts to produce corresponding salt, water and evolve ____.
Common name of sodium chloride is ……………….
Reaction of acids with bases are …………….. reactions.
Acids show their properties in the presence of …………….
CH 3COONa salt is ………… in nature.
TRUE/ FALSE Questions
The colour of methyl orange turns red in acidic solution.
Acidic nature of a substance is due to the formation of H+ (aq) ions in solution.
Mixing concentrated acids or bases with water is a highly endothemic process.
The colour of caustic soda turns the pink when phenolphthalein is added.
Hydrogen chloride gas turns the blue litmus red.
Sodium hydrogen carbonate is used in fire extinguisher.
Baking soda on strong heating gives sodium oxide and carbon dioxide.
Plaster of paris is obtained by heating gypsum at 373 K in a kiln.
When acids react with metal oxide, salt and water is formed.
Carbonic acid is a weak acid.
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Class 10 Science