The process of passing water through a bed of zeolite removes:
A. Hardness
B. Dissolved gases
C. Bacteria
D. Suspended impurities
Answer: Option A
Solution (By JKExamLibrary)
The zeolite (permutit) process is used to remove water hardness. Zeolite (hydrated sodium aluminum silicate) exchanges its Na⁺ ions for the Ca²⁺ and Mg²⁺ ions in hard water, thus softening it. It does not remove bacteria, dissolved gases, or suspended solids.
Explanation:
Cathode is where reduction takes place (gain of electrons). In electrolytic cells, cathode is negative (connected to negative terminal of battery). Cations migrate to cathode and are reduced.
Explanation:
Gamma rays are high-energy photons emitted from the nucleus when it transitions from excited state to lower energy state. Alpha/beta decay often leaves nucleus in excited state which emits gamma.
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