balloon, sound of burs
During any che
Red litmus turns blue
substance with a dif
2. Write chemical names from given
7. Match the pairs.
Group A 1. Tamarind
Group B
formulae.
Try this
a. Acetic acid
H.SO, Ca(OH)₂, HCl, NaOH, KOH, NH,OH
2. Curd
b. Citric acid
Take the lem
3. Lemon
c. Tartaric acid
3. Sulphuric acid hos highest importance in chemical Industry. Why?
Take two drops c
4. Vinegar
d. Lactic acid
and taste. Add o
8. State true or false.
4. Give answers.
Oxides of metals are acidic in nature. a.
glass of lemon j
Which acid is used for getting chloride salt? a
around the part
b. Table salt is acidic.
sound on taki
C. Metal corrodes due to salts
b. By squizzing lemon on a piece of rock the gas liberated turned lime water milky, which compound is present in the rock?
d. Salts are neutral.
Now again to
was in the be
9. Classify following substane2022/1/28 be done usi acidic, basic
Answers
Answered by
0
Answer:
Carbon dioxide
When lemon is squeezed onto the rock, a gas is liberated. This gas turned the lime water milky. This confirms that Carbon dioxide is present in the rock. This is because insoluble calcium carbonate that is CaCO3 is formed.
Answered by
0
Answer:
When lemon is squeezed onto the rock, a gas is liberated. This gas turned the lime water milky. This confirms that Carbon dioxide is present in the rock. This is because insoluble calcium carbonate that is CaCO3 is formed.
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