Q:

Which reaction occurs spontaneously?

A) Cl2(g) + 2NaF(aq)--> F2(g) + 2NaCl(aq)	B) I2(s) + 2NaF(aq)--> F2(g) + 2NaI(aq)
C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq)	D) I2(s) + 2NaBr(aq)--> Br2(l) + 2NaI(aq)

Answer & Explanation Answer: C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq)

Explanation:

In this chemical reaction chlorine change oxidation number from 0 to -1 (reduction) and bromine change oxidation number from -1 to 0 (oxidation).

Chlorine is stronger oxidation reagent than bromine.

In VIIA or group 17 (halogen elements) there are six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and tennessin(Ts).

They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the octet rule.

Going down in the group, element are weaker oxidazing reagent and less reactive.

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Q:

The first session of the Constitutional Assembly was held on

A) Nov 26, 1946	B) Dec 9, 1946
C) Aug 16, 1947	D) Jan 26, 1948

Answer & Explanation Answer: B) Dec 9, 1946

Explanation:

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Q:

The atoms of the elements having same mass number but different atomic number are called

A) Isotopes	B) Isobars
C) Isotones	D) Isomers

Answer & Explanation Answer: B) Isobars

Explanation:

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Q:

Which among the following Article/Articles of Indian Constitution deals with Emergency provisions?

I. Article 352

II. Article 356

III. Article 360

A) Only I	B) Both II and III
C) Both I and II	D) All I, II and III

Answer & Explanation Answer: D) All I, II and III

Explanation:

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Q:

The first space rocket to hit the moon was

A) Apollo II	B) Luna 9
C) Lunik 2	D) Zond 5

Answer & Explanation Answer: A) Apollo II

Explanation:

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Q:

The Buddhist Doctrines were written in

A) Sanskrit	B) Pali
C) Tibetan	D) Not written in any language but orally transnitted

Answer & Explanation Answer: B) Pali

Explanation:

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Filed Under: Indian History

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Q:

How many quarters in a football game?

how many quarters in a football game

A) 2	B) 3
C) 4	D) 0

Answer & Explanation Answer: C) 4

Explanation:

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Q:

Hollywood movie named The Black Prince recently won the Special Jury Remi Award at the 50th annual Worldfest-Houston International Film Festival. Which Indian actress has acted in this movie ?

A) Shabana Azmi	B) Deepika Padukone
C) Juhi Chawla	D) Priyanka Chopra

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