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:

Who has been selected for the 2016 National Geoscience Award in the field of geo-environmental studies?

A) Keshav Krishna	B) Ashok Kumar Singhvi
C) P.V. Joseph	D) Vishnu Deo Sai

Answer & Explanation Answer: A) Keshav Krishna

Explanation:

Dr. A Keshav Krishna, a scientist at the National Geophysical Research Institute (NGRI), has been selected for 2016 National Geoscience Award by the Ministry of Mines in the field of Geo-environmental studies in applied geosciences.

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Q:

"Shakti Sthal" is the memorial of who of the following Indians ?

A) Jawaharlal nehru	B) Lal Bahaddur sastry
C) Indira Gandhi	D) Jagjeevan Ram

Answer & Explanation Answer: C) Indira Gandhi

Explanation:

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Q:

Which of the following is not an aerosol?

A) mud	B) dust
C) smoke	D) fog

Answer & Explanation Answer: A) mud

Explanation:

Among the given options, mud is not an aerosol.

An aerosol is a suspension of fine solid particles or liquid droplets, in the air or another gas. Aerosols can be natural or anthropogenic. Examples of natural aerosols are fog, dust, forest exudates and geyser steam. Examples of anthropogenic aerosols are haze, particulate air pollutants, and smoke.

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Q:

Can character data be stored in computer memory?

A) Yes---a primitive data type is used to store characters	B) No---computer memory can only store patterns
C) Yes---characters are stored in special memory	D) No---computers can only store numbers

Answer & Explanation Answer: A) Yes---a primitive data type is used to store characters

Explanation:

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Q:

In what US state does the Mississippi River begin?

Answer

Minnesota

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Subject: World Geography

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Q:

Explain hospitality in terms of hotel industry ?

Answer

Hospitality actually means, taking care of guests in the best possible way.

Organizing, providing services and looking care after guests is included in it.

It means friendly and generous treatment of guests.

Hospitality industry includes all companies involved in providing services for guests. They provide more mental satisfaction than tangible objects.

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Subject: Hospitality

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Q:

Which among the following is not aprocess state in unix?

A) Running	B) Runnable
C) Zombie	D) Stopped

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