General
✓✗Name the product obtained on treatment of chlorine gas on slaked lime
General
✓✗Sodium carbonate decahydrate is commonly known as
- backing soda
- baking powder
- washing soda
- caustic soda
General
✓✗Complete the reaction

- x - light, y - NaOH, z - H2O
- x - electricity, y - NaOH, z - Cl2
- x - heat, y - Na2O, z - Cl2
- x - 300 atoms, y - NaCl, z - H2O
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✓✗The salt which will give a neutral solution on dissolving in water will be
-
-
- KCl
-
General
✓✗Chemical formula of Gypsum is
General
✓✗Property not shown by acids is
- they are good conductors of electricity
- they are sour in taste
- they turn blue litmus red
- they turn red litmus blue
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✓✗A metal compound ‘A’ when reacts with dilute hydrochloric acid, produces effervescence. The gas evolved can extinguish fire. Substance A is
- CaCl2
- Ca(OH)2
- CaCO3
- CaO
General
✓✗A milk man adds a very small amount of baking soda to fresh milk. This is to ____
- increase the rate of fermentation
- decrease the rate of fermentation
- increase its quality
- increase its quantity
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✓✗The number of molecules of water of crystallization present in washing soda crystals is
- five
- two
- ten
- seven
General
✓✗The base which does not contain metal is
- Ammonium hydroxide
- Caustic soda
- Sodium hydroxide
- Milk of magnesia