General Knowledge 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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Filed Under: Chemistry
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Q:

A fixture is defined as a device which

A) is used to check the accuracy of workpiece B) holds and locates a workpiece and guides and controls one or more cutting tools
C) holds and locates a workpiece during an inspection or for a manufacturing operation D) All of the above
 
Answer & Explanation Answer: B) holds and locates a workpiece and guides and controls one or more cutting tools

Explanation:

A_fixture_is_defined_as_a_device_which1551357222.jpg image

A fixture is defined as a device which holds and locates a workpiece and guides and controls one or more cutting tools.

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Filed Under: Physics
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Q:

What came after the Edwardian era?

Answer

The Edwardian era (1901-1914) is the last period in British history to be named after the monarch who reigned over it. Although Edward VII reigned from 1901 to 1910 to be succeeded by George V, the Edwardian period is generally considered to have ended at the outbreak of the First World War in 1914.

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Subject: World History Exam Prep: AIEEE , Bank Exams
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Q:

When is the commonwealth day observed by its member countries

A) Jan 25 B) may 24
C) octo 24 D) Nov 14
 
Answer & Explanation Answer: B) may 24

Explanation:
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Filed Under: World Organisations

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Q:

Cellular respiration is best associated with the

A) microtubule B) ribosome
C) Golgi apparatus D) mitochondrion
 
Answer & Explanation Answer: D) mitochondrion

Explanation:

Cellular respiration is best associated with the organelle Mitochondrion.

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Filed Under: Biology
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Q:

Sagarmatha friendship is between which two countries ?

A) Pakistan & China B) Nepal & India
C) India & China D) China & Nepal
 
Answer & Explanation Answer: D) China & Nepal

Explanation:

The first ever joint military exercise named 'Sagarmatha Friendship-2017' is all set between Nepal and China. Sagarmatha is the Nepali name for Mt Everest, which stands in between both the countries.


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Filed Under: General Awareness
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Q:

Dilip Sardesai Award is awarded to the following cricketer

A) Zaheer Khan B) Virat Kohli
C) Yuvaraj Singh D) Rohit Sharma
 
Answer & Explanation Answer: D) Rohit Sharma

Explanation:
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Filed Under: Honours and Awards

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Q:

The world's largest river is the......

A) The Amazon B) The Brahmaputra
C) The Mississippi and Missouri D) The Nile
 
Answer & Explanation Answer: A) The Amazon

Explanation:
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Filed Under: World Geography

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