Chemistry
Given below are four covalent compounds.
(A) H2O (B) CCl4 (C) Cl2 (D) NH3
Which of the following represents the correct order when they are arranged in their increasing number of covalent bonds?
- B < D < A < C
- A < C < D < B
- C < D < A < B
- C < A < D < B
Related Questions
Given below are four different illustrations of preparing hydrochloric acid drawn by students. Which of these is the correct?
When two organic compounds A and B react together in the presence of conc. H2SO4, a fruity smell evolved from one of the products. If A has the functional group [-O-H], which of the following stands for the functional group of B?
- 1.
![When two organic compounds A and B react together in the presence of conc. H2 SO4, a fruity smell evolved from one of the products. If A has the functional group [-O-H], which of the following stands for the functional group of B? Chemistry Competency Focused Practice Questions Class 10 Solutions.](https://cdn1.knowledgeboat.com/img/cp10/q18-a-mcq-concise-chem-competency-practice-2026-solutions-class-10-icse-239x162.png)
- 2.
![When two organic compounds A and B react together in the presence of conc. H2 SO4, a fruity smell evolved from one of the products. If A has the functional group [-O-H], which of the following stands for the functional group of B? Chemistry Competency Focused Practice Questions Class 10 Solutions.](https://cdn1.knowledgeboat.com/img/cp10/q18-b-mcq-concise-chem-competency-practice-2026-solutions-class-10-icse-252x123.png)
- 3.
![When two organic compounds A and B react together in the presence of conc. H2 SO4, a fruity smell evolved from one of the products. If A has the functional group [-O-H], which of the following stands for the functional group of B? Chemistry Competency Focused Practice Questions Class 10 Solutions.](https://cdn1.knowledgeboat.com/img/cp10/q18-c-mcq-concise-chem-competency-practice-2026-solutions-class-10-icse-319x128.png)
- 4.
![When two organic compounds A and B react together in the presence of conc. H2 SO4, a fruity smell evolved from one of the products. If A has the functional group [-O-H], which of the following stands for the functional group of B? Chemistry Competency Focused Practice Questions Class 10 Solutions.](https://cdn1.knowledgeboat.com/img/cp10/q18-d-mcq-concise-chem-competency-practice-2026-solutions-class-10-icse-181x97.png)
The electrolytic cell used for the electrolysis of molten lead bromide is made of Silica. Which of the following properties of silica that is the reason for it not having much significance in the process of electrolysis?
- Hard and strong
- Non-conductor of electricity
- Non-reactive
- Withstands high temperature
A distinctive reaction that takes place when ethanol is treated with acetic acid in the presence of concentrated sulphuric acid to give a fruity smell.
P: The reaction is called esterification.
Q: The reaction is called hydration.- Only P
- Only Q
- Both P and Q
- Both P and Q are wrong