Question

ASSIGNMENTS OF ACID, BASES
Which of the substances given below would you suggest as remedy to a person suffering from
acidity after over eating
Lemon Juice, Vinegar, Orange juice, Sodium Hydroxide Sol, Baking soda sol.
How can you distinguish between acid and a base on the basis of their taste ?
What are indicators ? Name two natural indicators and two synthetic indicators ?
Stain of a curry on a white cloth becomes reddish brown when soap is scrubbled on it." From the
above observation:
Identify the nature of soap soin.
Why does colour again turns yellow when washed with plenty of water.
There are two substances X and Y Substance X gives red colour with methyl orange and sub-
stance Y gives pink colour with phenolphthalein solution. Write the nature of X and Y. Also write
the reaction between X and Y What are such reaction called ?
What are the colours of Methyl orange and phenolphthalein solution ?
Wame fwo olfactory indicators. Write their effects on acids and Bases.
In the reaction of Zn granules with di. H,SO
o Why are bubbles formed in Soap Sol.
1) What happens when burning candle is taken near bubbles
m) What is observed on the surface of Zn granules
v) is the above reaction possible with HNO, Why or why not?
) Write the chemical equation of the reaction taking place.
What happens when Zn is added to sodium hydroxide sol. Write the chemical eq. of the process.
A substance Z when reacted with dil HCI produce brisk effervescence. The gas Y released turns
lime water milky. If one of the substance obtained in the above reaction is potassium chloride.
identify substances Z and Y Write the chemical equation
Wrne the chemical eqof the reaction taking places when Co, gas is passed in excess through​

Answer 1

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