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(One Question Expected in NEET Or JEE)
(One Question Expected in NEET Or JEE)
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In the average composition of portland cement, the percentage of magnesium oxide is a ___________
Anonymous Quiz
18%
3 to 4%
58%
2 to 3%
19%
4 to 5%
5%
1 to 2%
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The ionization enthalpy _________ down the group in the family.
Anonymous Quiz
31%
Increases
48%
Decreases
8%
Constant
13%
Is a regular
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