Engineer & Medical

Classification of Element question bank (Chemistry)

Practice 863 free Engineer & Medical Chemistry - Classification of Element questions with answers and step-by-step solutions.

Q1.

In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.

(A)
lowest and lowest
(B)
highest and lowest
(C)
lowest and highest
(D)
highest and highest
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Q2.

Given below are two statements:
Statement I: The correct order of electronegativity of fluorine, oxygen and nitrogen is $F \gt O \gt N$.
Statement II: The oxidation state of oxygen in OF$_2$ is $+2$ and in Na$_2$O is $-2$.
In the light of the above statements, choose the correct answer from the options given below

(A)
Both Statement I and Statement II are true
(B)
Both Statement I and Statement II are false
(C)
Statement I is true but Statement II is false
(D)
Statement I is false but Statement II is true
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