2013 · Q15
15. Which one among the following is not a correct statement?
General KnowledgeChemistry
- ACathode rays are negatively charged particles
- BCathode rays are produced from all the gases
- CElectrons are basic constituents of all the atoms
- DHydrogen ions do not contain any proton
Explanation
A hydrogen ion (H+) is itself a proton, so D is the not-correct statement; the official key marks D.