Questions

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:

Which is the most beautiful animal in the cat family?

Answer

Snow Leopard

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Q:

IP address is currently

A) 4 bytes long B) available in plenty
C) 6 bytes long D) not assigned as it is all used up
 
Answer & Explanation Answer: A) 4 bytes long

Explanation:

IP address is currently 4 bytes long. An IP address is written in "dotted decimal" notation, which is 4 sets of numbers separated by period each set representing 8-bit number ranging from (0-255).

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Q:

The Hardest substance available on Earth is

A) Diamond B) Wurtzite
C) Platinum D) Gold
 
Answer & Explanation Answer: A) Diamond

Explanation:

Diamond is the hardest substance available on Earth.

The_Hardest_substance_available_on_Earth_is1558506581.png image 

Diamond is the hardest substance available on Earth due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms. A covalent bond is very strong and requires a large amount of energy to break itself, and diamond has many covalent bonds.

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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:

What group of animals is called a congress?

A) Lions B) Baboons
C) Tigers D) Sheep
 
Answer & Explanation Answer: B) Baboons

Explanation:

what_group_of_animals_is_called_a_congress1538029838.jpg image

Group of baboons together is called a congress.

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Q:

The Teesta River is flowing through which two Indian states ?

A) Haryana & Punjab B) Sikkim & West Bengal
C) West Bengal & Manipur D) Assam & Uttarakhand
 
Answer & Explanation Answer: B) Sikkim & West Bengal

Explanation:

The Teesta River is a 309 km long river flowing through the Indian states of West Bengal and Sikkim, before going to Bay of Bengal through Bangladesh.

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