Why is bleaching powder used for disinfecting drinking water?
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A.
It reduces the hardness of water.
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B.
It neutralises the water.
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C.
It provides an acidic medium.
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D.
It releases chlorine, which kills germs.
Correct Answer:
D. It releases chlorine, which kills germs.
Explanation:
The pattern involves shifting each letter backward in the English alphabet by a specific decreasing value: 4, 3, 2, and then 1.
Applying this logic to SKIB:
S - 4 = O
K - 3 = H (Note: The prompt says OGNG, but following the logic of -4, -3, -2, -1: S-4=O, K-3=H, I-2=G, B-1=A. Looking at the relationship SKIB to OGNG: S-4=O, K-4=G, I+5=N, B+5=G. Let's re-examine based on the second pair CUCV to YQHA: C-4=Y, U-4=Q, C+5=H, V+5=A.
The consistent pattern is:
1st letter: -4 positions
2nd letter: -4 positions
3rd letter: +5 positions
4th letter: +5 positions
Applying this to QIRK:
Q - 4 = M
I - 4 = E
R + 5 = W
K + 5 = P
The resulting sequence is MEWP.
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