Questions

Q:

What types of orbital overlap occur in Cumulene?

Answer

A cumulene is a hydrocarbon with three or more cumulative double bonds. They are analogous to allenes, only having a more extensive chain. The simplest molecule in this class is butatriene, which is also called simply cumulene.


 


The carbons on the ends are sp² hybridized, with a p-orbital for the 'second' bond in the double bond with their neighboring carbons.


They have those sp² orbitals overlapping with the s from the hydrogen, and they have a p overlapping in the pi bond with the neighboring carbon. They also have a sigma bond with the neighboring carbon I'll get to.


The middle carbons each have two pi bonds with their neighbors, leaving sp hybridiaztion for the rest. So they have sp/sp² with the end carbons, and sp/sp with each other. (And they also have p/p in the pi bonds).


 


All orbital overlappings in Cumuene are :


* s/sp²


* p/p


* sp/sp²


* sp/sp

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT
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Q:

As per the Census of 2001, the least urbanised State of India is

A) Arunachal Pradesh B) Assam
C) Himachal Pradesh D) Uttar Pradesh
 
Answer & Explanation Answer: C) Himachal Pradesh

Explanation:
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Filed Under: Indian Economy

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Q:

The 462nd Kandoori Festival 2019 has celebrated in?

A) Telangana B) West Bengal
C) Tamilnadu D) Uttar Pradesh
 
Answer & Explanation Answer: C) Tamilnadu

Explanation:

Kandoori festival is a festival which is celebrated by the Muslims of South India every year with great enthusiasm and grace. The festival is celebrated in commemoration of the anniversary of the saint's death, and pilgrims participate in the rituals and rites.

The 462nd annual Kandoori festival has commenced at nearby Nagore Dargah, a famous Muslim pilgrim centre in Tamilnadu.

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Filed Under: Indian Geography
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Q:

The largest word class in English?

A) Nouns B) Verbs
C) Prepositions D) Adjectives
 
Answer & Explanation Answer: A) Nouns

Explanation:

Nouns form the largest word class, and verbs the second-largest in English.

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Filed Under: English
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Q:

Which is the oldest poem in English language?

A) Ozymandias B) Paradise Lost
C) Beowulf D) The Tyger
 
Answer & Explanation Answer: C) Beowulf

Explanation:

Beowulf is an Old English epic poem consisting of 3,182 alliterative lines. It is one of the most important works of Old English literature.

Beowulf_is_an_Old_English_epic_poem1563602798.jpg image

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Filed Under: English
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Q:

The insects do not have blood pigments because 

A) there is no blood B) tissues have pigments
C) blood does not have a respiratory function D) pigments are elsewhere
 
Answer & Explanation Answer: C) blood does not have a respiratory function

Explanation:

The blood of some invertebrate animals like the earthworm is red due to haemoglobin pigment, but the pigment is dissolved in the plasma. In vertebrates the same pigment is found in the red corpuscles and not in the plasma.

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Filed Under: Biology

3 3159
Q:

What scheme does the Kernel in Unix System V follow while choosing a swap device among the multiple swap devices?

Answer

Kernel follows Round Robin scheme choosing a swap device among the multiple swap devices in Unix System V.

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Subject: Operating Systems Exam Prep: GATE

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Q:

'Dona Paula' is one of the most famous and striking monuments located in which state ?

A) Telangana B) Goa
C) Tamil Nadu D) Andhra Pradesh
 
Answer & Explanation Answer: B) Goa

Explanation:
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Filed Under: Famous Places
Exam Prep: Bank Exams , CAT

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