Chemistry
Ravi was asked to identify the cation present in the salt solution. He added one of the reagents given below and got a reddish-brown precipitate. The reagent that he used is:
- Silver nitrate solution
- Barium chloride solution
- Ammonium hydroxide
- Calcium chloride solution
Related Questions
Which metal does not react with HCl to form a colourless, odourless gas which burns with a pop sound?
- Ca
- Mg
- Cu
- Zn
Prateek added warm water to magnesium nitride, and a colourless gas evolved, which, when tested with phenolphthalein, turned it pink. The gas evolved is:
- Carbon dioxide
- Ammonia
- Nitrogen
- Hydrogen chloride
Which of the following statements about ethane is false?
- It is a saturated hydrocarbon.
- It undergoes a substitution reaction.
- It is a gas at ordinary temperatures.
- It has a triple bond between the carbon atoms.
Thermite mixture is used to weld the broken ends of the iron girders. This mixture consists of ferric oxide and aluminium powder, which, when heated, produces molten iron. In this reaction, the aluminium powder acts as a/an …………… agent.
- oxidising
- reducing
- dehydrating
- corroding