Answer:
The role of indicator in titration is to detect the endpoint of the titration. When the colour of the solution changes, it indicates that the concentration of the chemical specie has reached a critical range. This change in colour is possible with the help of indicators.
Explanation:
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I looked it up and it said O
Instead, it is extracted by electrolysis. The ore is first converted into pure aluminium oxide by the Bayer Process, and this is then electrolysed in solution in molten cryolite - another aluminium compound. The aluminium oxide has too high a melting point to electrolyse on its own. The usual aluminium ore is bauxite.
Answer:
D. Force of attraction between one atom and another atom
Explanation:
Chemical bond is the force of attraction between the atoms, molecules or ions due to which different types of chemical compounds are formed. Based on the types of attractions the bonds have been categorized in the following three categories-
- Ionic bonds - there is electrostatic force of attraction between the charged ions
- Covalent bonds - mutual sharing of the electrons occur
- Metallic bond - here many detached electrons are shared between more than two positively charged ions.