Question

The figure given below represents the experiment
carried out between conc, sulphuric acid and sodium
chloride, which react with each other to form HCl gas,
Lítmus paper
HCl gas
·Delivry tube
Cork
Test tube
Conc, H2SO4
Naci
Blue litmus paper is brought near the mouth of the
delivery tube to check the presence of HCl acid but no
change is observed in the color of litmus paper
because
Select one:
a. The litmus paper used is dry
b. The litmus paper is kept very close to the mouth
of the delivery tube
C. The litmus paper used is moist
d. Blue litmus paper does not change its color with
an acid

Answer 1

Answer

The litmus paper used is dry.

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Answer 2

Explanation:

• a. The litmus paper used is dry