Questions

Q:

What is the conjugate base of H2O?

A) NH3+ B) OH-
C) H2O D) All the above
 
Answer & Explanation Answer: B) OH-

Explanation:

A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it.

On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid.

Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic.

Represented as the following chemical reaction:

Acid + Base ⇌ Conjugate Base + Conjugate Acid

 

The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.

 

Report Error

View Answer Report Error Discuss

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

4 11777
Q:

Bootstrapping is also known as

A) hot boot B) cold-hot boot
C) cold boot D) quick boot
 
Answer & Explanation Answer: C) cold boot

Explanation:

Bootstrapping is a term used in business to refer to the process of using only existing resources, such as personal savings, personal computing equipment, and garage space, to start and grow a company.

Report Error

View Answer Report Error Discuss

Filed Under: Computer
Exam Prep: Bank Exams

14 11767
Q:

What is continuously rendered service?

Answer

Continuously rendered services are those services, which are prepared and provided only to the customers who are physically present. This kind of service is not finished in instant time; it is a process, which is extended to a time limit. It is a kind of face-to-face interaction. For example reservation service, restaurant service, massage, etc.

Report Error

View answer Workspace Report Error Discuss

Subject: Hospitality

13 11766
Q:

What is the scientific name for washing soda?

A) Sodium carbonate B) Sodium bicarbonate
C) Calcium carbonate D) Calcium bicarbonate
 
Answer & Explanation Answer: A) Sodium carbonate

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: General Science

62 11752
Q:

In the 1700s,who would pay the postage fee for letters before the stamp was invented?

A) The sender B) There was no fee
C) The receiver of the letter D) The post office
 
Answer & Explanation Answer: C) The receiver of the letter

Explanation:

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

22 11751
Q:

India's first solar ponds Bhuj Solar Pond project is being constructed in the state of ____

A) Rajasthan B) Maharashtra
C) Gujarat D) Andhra Pradesh
 
Answer & Explanation Answer: D) Andhra Pradesh

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian Geography

46 11731
Q:

In which type of economy National Income and Domestic Income is equal?

A) Closed Economy B) Open Economy
C) Developed Economy D) Developing Economy
 
Answer & Explanation Answer: A) Closed Economy

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: General Awareness

41 11726
Q:

The Vikramshila Mahavihara, a great centre of education, was founded by

A) Baladitya B) Harsha
C) Gopala D) Dharmapala
 
Answer & Explanation Answer: D) Dharmapala

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian History

12 11721