Advertisements
Advertisements
प्रश्न
Several sodium compounds find use in industries. Which of the following compounds are used for textile industry?
(i) Na2CO3
(ii) NaHCO3
(iii) NaOH
(iv) NaCl
उत्तर
(i) Na2CO3
(iii) NaOH
Explanation:
Na2CO3 is used in paper paints and textile industry. It is used to manufacture soap powders.
NaOH is used in textile industry for mercerising cotton fabrics.
APPEARS IN
संबंधित प्रश्न
Describe two important uses of the following quicklime.
Describe the importance of the limestone.
Describe the importance of the plaster of paris.
A substance which gives brick red flame and breaks down on heating to give oxygen and a brown gas is ______.
Which of the following statements is true about Ca(OH)2?
Dehydration of hydrates of halides of calcium, barium and strontium i.e., CaCl26H2O, BaCl2.2H2O, SrCl2.2H2O, can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?
A substance absorbs \[\ce{CO2}\] and violently reacts with water. That substance is ______.
What are the products formed in sequence when excess of CO2 is passed in slaked lime?
The conversion of hydroxyapatite occurs due to presence of p - ions in water. The correct formula of hydroxyapatite is ______.
\[\ce{Y <-[\Delta, 205°C] CaSO4.2H2O ->[\Delta, 120°C] X}\]
X and Y are respectively:
