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1
Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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Isobars have _______.

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Answer & Explanation Answer: A) Same mass numbers but different atomic numbers

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Who invented the modern periodic table?

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Answer & Explanation Answer: B) Mendeleev

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The absolute zero is a temperature at which _______

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Answer & Explanation Answer: A) molecular motion in a gas would cease

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Which of the following is not a nitrogenous fertiliser?

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Answer & Explanation Answer: D) Superphospohate

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Which one of the following non­metals shows allotropy in the liquid state?

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Answer & Explanation Answer: B) Sulphur

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Which of the following is a natural polymer?

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Answer & Explanation Answer: D) Starch

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