Q:

Order of basicity of amines in gaseous state?

A) 2'> 1'> 3' > NH3	B) 3' > 2' > 1'> NH3
C) 1' > 2' > 3'> NH3	D) 2'> 3'> 1' > NH3

Answer & Explanation Answer: B) 3' > 2' > 1'> NH3

Explanation:

The order of basicity in ammonia is different in gaseous phases vs. aqueous phases due to hydrogen bonding.

So in gaseous phases it's the well known: 3' > 2' > 1'> NH3. Just so we're on the same page, this is due to the inductive effect of electron donating alkyl groups--they destabilize the lone pair on nitrogen atom, making nitrogen more basic.

But in aqueous phase, the order is slightly different: 2'> 1'> 3' > NH3.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

6 6352

Q:

In photography, the compound of nitrogen used is

A) Potassium nitrate	B) Silver nitrate
C) Ammonium carbonate	D) Ammonium bicarbonate

Answer & Explanation Answer: B) Silver nitrate

Explanation:

Silver nitrate is the basic substance from which silver bromide is obtained. The photographic films are impregnated with the light sensitive AgBr.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

12 6347

Q:

Which country has always remained free from foreign rule?

A) Phillipines	B) Nepal
C) USA	D) Laos

Answer & Explanation Answer: B) Nepal

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: World History

8 6347

Q:

According to ohm's law, which of the following is true?

A) The current flowing through a wire is directly proportional to the Potential Difference applied across its ends	B) The current flowing through a wire is directly proportional to its resistance
C) The current flowing through a wire is indirectly proportional to its length	D) The current flowing through the wire is indirectly proportional to the Potential Difference applied across its ends

Answer & Explanation Answer: A) The current flowing through a wire is directly proportional to the Potential Difference applied across its ends

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 6343

Q:

Teotihuacan Pyramids is located in which country?

A) Agentina	B) Peru
C) Mexico	D) Laos

Answer & Explanation Answer: C) Mexico

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Famous Places

10 6341

Q:

Blood is

A) alkaline	B) neutral
C) like a buffer	D) acidic

Answer & Explanation Answer: A) alkaline

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Biology

39 6335

Q:

Rearrange the parts of the sentence in correct order.

Even the knowledge

P-for less disastrous policies
Q-the Census would make
R-of elementary facts from

A) QRP	B) QPR
C) PRQ	D) RQP

Answer & Explanation Answer: D) RQP

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 6333

Q:

One of the following sites from where the famous Bullseal of Indus Valley Civilization was found

A) Harappa	B) Chanhudaro
C) Lothal	D) Mohenjodaro

Questions

Quick Links