1
AP EAPCET 2021 - 20th August Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following statements is/are correct?
1. Mercury is the only metal that exists as liquid at room temperature.
2. Among non-metals, carbon has the highest melting point.
3. Hydrogen is the most abundant element in the universe.
4. Oxygen is the most abundant element in the Earth's crust.
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0
The element with outer electronic configuration $$(n-1) d^2 n s^2$$, where $$n=4$$, would belong to
3
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0
Choose the correct option regarding the following statements
Statement 1 Nitrogen has lesser electron gain enthalpy than oxygen.
Statement 2 Oxygen has lesser ionisation enthalpy than nitrogen.
4
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0
Among the given configurations, identify the element which does not belong to the same family as the others?
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