Questions

Q:

Order of basicity of amines

Answer

The order of basicity for primary, secondary and tertiary amines are:


Secondary > Primary > Tertiary > NH3


 


* Amines are basic in nature as they have lone pair of electrons on nitrogen. Therefore, they have a strong tendency to donate this lone pair of electrons to electron acceptors.


* The stability of conjugate acids formed is dependent on the extent of H-bonding,and greater the number of H-atoms on N more stable is the conjugate acid.


* The conjugate acid of primary amine is the most stable with greater number (3) of H-bonds than > Secondary > tertiary. But primary amines are less basic than secondary as the electron density on the N atom is less and lone pair of electrons are not readily available for protonation.


* The two opposing factors i.e. the stability of conjugate acids formed and ease of availability of electrons for Protonation, balance each other in case of secondary amines and it is most basic.

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Q:

Which of the following carbohydrates is a polysaccharide?

A) Fructose B) Cellulose
C) Glucose D) Sucrose
 
Answer & Explanation Answer: B) Cellulose

Explanation:

Carbohydrates are also called as saccharides are molecular compounds made from just three elements:

carbon, hydrogen and oxygen.

 

Carbohydrates are:

* a source of energy for the body e.g. glucose and a store of energy, e.g. starch in plants

* building blocks for polysaccharides (giant carbohydrates), e.g. cellulose in plants and glycogen in the human body

* components of other molecules eg DNA, RNA, glycolipids, glycoproteins, ATP

 

Types:

1. Monosaccharides (e.g. glucose) and

2. Disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars.

3. Other carbohydrate molecules are very large called Polysaccharides such as starch and cellulose.

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Q:

The relationship where both the participating entities belong to same entity type is called

A) Participation B) Recursive
C) Standard D) Normal
 
Answer & Explanation Answer: B) Recursive

Explanation:

The relationship where both the participating entities belong to same entity type is called Recursive relationship

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Q:

What English word has three consecutive double letters?

Answer

Bookkeeper is the only English word that has three consecutive double letters.

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Q:

What is the hierarchy in the structure of the House?

A) The Speaker is at the top, and the whips are at the bottom. B) The floor leaders are at the top, and the members are at the bottom.
C) The members are at the top, and the floor leaders are at the bottom. D) The Speaker is at the top, and the members are at the bottom.
 
Answer & Explanation Answer: D) The Speaker is at the top, and the members are at the bottom.

Explanation:

Hierarchy is a method to structure an establishment employing various levels of administration and a vertical section, or series of command, between higher and lower levels of the organization. Superior levels dominate lower levels of the bureaucracy.

 

The Speaker is at the top, and the members are at the bottom.

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Q:

Project Integration Management

What are the Project Management Processes included in the Project Integration Management?

Answer

The Integrative Project Management Processes include:


Develop Project Charter - Developing the project charter that formally authorizes a project or a project Phase.


Develope Preliminary Project Scope Statement - Developing the preliminary project scope statement that provides a high level scope narrative


Develop Project Management Plan -  Documenting the actions necessary to define, prepare, integrate, and coordinate all subsidiary plans into a project management plan.


Direct and Manage Project Execution- Executing the work defined in the project management plan to achieve the project's requirements defined in the project scope statement.


Monitor and Control Project Work - Monitoring and controlling the processes used to initiate, plan, execute, and close a project to meet the performance objectives defined in the project management plan.


Integrated Change Control - Reviewing all change requests, approving changes, and controlling changes to the deliverables and organizational process assets.


Close Project - Finalizing all activities across all of the Project Management Process Groups to formally close the project or a Project phase.

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Q:

Representation level data models provide the concepts that are close to the way many users perceive data

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

High level data models provide the concepts that are close to the way many users perceive data

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Q:

The function of nitrogen in air is 

A) to make air a moderate supporter of combustion B) to maintain the density of air constant
C) to prevent the hydrogen in air from exploding D) to reduce the poisonous nature of ozone in air
 
Answer & Explanation Answer: A) to make air a moderate supporter of combustion

Explanation:

If air contained all oxygen and no nitrogen, everything would have burnt off

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