Q:

Which element has the lowest ionization energy?

A) He	B) Ne
C) Fr	D) Rb

Answer & Explanation Answer: C) Fr

Explanation:

Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells.

The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

HGence, in this trend Francium (Fr) has the lowest ionization energy.

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Q:

A change in which a substance undergoes a change in its physical properties is called _____________.

A) Chemical Properties	B) Physical Properties
C) Chemical Change	D) Physical Change

Answer & Explanation Answer: D) Physical Change

Explanation:

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Q:

Mitochondrial DNA analysis is best suited for

A) analysis in which only a minute quantity of DNA material is available	B) Forensic science analysis
C) analysis requiring greater discriminatory power than STR	D) All of the above

Answer & Explanation Answer: B) Forensic science analysis

Explanation:

Mitochondrial DNA analysis is best suited for Forensic science analysis.

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Q:

Lime water turns milky when carbon dioxide is passed through it. It is due to the formation of

A) Calcium Carbonate	B) Barium Carbonate
C) Calcium Hydrogen Carbonate	D) Calcium Oxide

Answer & Explanation Answer: A) Calcium Carbonate

Explanation:

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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Chafe

A) Chain	B) Safe
C) Irritate	D) Joy

Answer & Explanation Answer: C) Irritate

Explanation:

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Q:

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.

A) Dictionory	B) Irrelevant
C) Perishable	D) Tangible

Answer & Explanation Answer: A) Dictionory

Explanation:

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to “No improvement”.

The police had to break the door to get in

A) to break up	B) to break in
C) to break down	D) No improvement

Answer & Explanation Answer: C) to break down

Explanation:

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Q:

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Verdant

A) Grassy	B) Lush
C) Dying	D) Fresh

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