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:

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:

Your company has a policy of having every software project reviewed and approved by the Architecture Review Board prior to the construction  phase of a project. you are currently in the process of activity sequencing. This is a example of what?

A) Gatekeeping B) Milestone
C) New scope for the project D) Project integration
 
Answer & Explanation Answer: B) Milestone

Explanation:

The approval by the Architecture Review Board is a milestone you want to include in activity sequencing so that you can ensure the requirements for meeting the review board's approval are met.  Answer A is tempting because the question references phase-end activities; however, it is not an example of gatekeeping because the project is not being authorized to continue based only on the architecture review.Gatekeeping often involves the review of other factors as well. Answer C is incorect because the requirement of a review board approval does not afect scope. Answer D is incorrect because project integration planning involves project plan development, execution, and integrated change control, which are not related to a review board.

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Filed Under: PMP Certification

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Q:

What has two hands but no arms or legs?

Answer

A Clock has 3 hands i.e, an Hour hand, a Minute hand and a Seconds hand.

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Q:

Which of the following is a project to develop watersheds in India

A) DRDO B) CARE
C) AVARD D) NWDPRA
 
Answer & Explanation Answer: D) NWDPRA

Explanation:
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Filed Under: Indian Economy

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Q:

Standard Electrode potential is measured in terms of

A) Pyrometer B) Electrometer
C) Thermometer D) Voltmeter
 
Answer & Explanation Answer: D) Voltmeter

Explanation:

Voltmeter is used to measure Standard Electrode Potential

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Filed Under: Chemistry

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Q:

The Sivasamudram Falls is on which river ?

A) Ganga B) Saryu
C) Cauvery D) Krishna
 
Answer & Explanation Answer: C) Cauvery

Explanation:
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Filed Under: Indian Geography
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Q:

Pinaka is a

A) a multi barrel rocket launcher developed by DRDO B) a rocket launcher developed by France
C) a missile developed by DRDO D) a missile imported from Russia
 
Answer & Explanation Answer: A) a multi barrel rocket launcher developed by DRDO

Explanation:

1. Pinaka is a multi barrel rocket launcher developed by the Defence Research and Development Organisation (DRDO) for the Indian Army.

2. The system has a maximum range of 40 km for Mark-I and 75 km for Mark-II, and can fire a salvo of 12 rockets in 44 seconds.

3. The system is mounted on a Tatra truck for mobility.

4. Actually, the meaning of Pinaka is Shiv Dhanush.

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Filed Under: General Awareness
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