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1. |
Which one of the following is heavy water used in nuclear reactor? [CDS] |
A. | Water having molecular weight 18 u |
B. | Water having molecular weight 20 u |
C. | Water at \[4{}^\circ C\] but having molecular weight 19u |
D. | Water below the ice in a frozen sea |
Answer» C. Water at \[4{}^\circ C\] but having molecular weight 19u | |