Answer:
False
Explanation:
Half life is the time period at which the concentration of the radioactive substance in decay reduced to half.
<u>Thus, if the hydrogen-3 has gone 2 half lives, it means that it has first reduced to its half and then again the half of what it was, i.e. 1/4</u>
Thus, after two successive half-lives, the concentration must be 1/4 of the initial concentration and hence, the statement is false.
Following are the possible isomers of secondary alcohol and ketones for six carbon molecules. In order to distinguish between sec. alcohol and ketone we can simply treat the unknown compound with acidified Potassium Dichromate (VI) in the presence of acid. If with treatment with unknown compound the colour of K2Cr2O7 (potassium dichromate VI) changes from orange to green then it is confirmed that the unknown compound is sec. alcohol, or if no change in colour is detected then ketone is confirmed. This is because ketone can not be further oxidized while, sec. alcohol can be oxidized to ketones as shown below,
Could you please describe the question?
lmk once you are done!!
support me by marking as brainliest!!
Graphite is a not metal because of the lack of the properties
- Metals are ductile but graphite is not ductile
- Metals are meleable but graphite is not meleable
- metal are sonorous but. graphite is not sonorous
- Metal are lustrous but graphite is not lustrous
Graphite contains only one property of metal
- metal is a good conductor of electricity but its a exception.
Because of all that reasons graphite is not included in metalloid.
Hope it helps u mate
