Moderate
764 likes
Question
Show by drawing a Lewis dot diagram of CH4 that CH4 is formed by covalent bonds. (Atomic numbers of H and C are 1 and 6 respectively)
WBBSE
Class X
Physical Science
Ionic and Covalent Bond
02 Mark
2023
Answer
Lewis dot diagram of CH4

- Carbon shares one of its four valence electrons with each of the four hydrogen atoms.
- Each hydrogen atom shares its single electron with carbon.
- This sharing results in four covalent bonds.
Related Questions
More WBBSE Moderate level questions
1/12
Moderate
Q.
Which of the following compounds has no existence as separate and distinct molecule?
A.
(d) NaCl Explanation: Ionic compounds like NaCl form a stable ionic network...
View Question
Moderate
Q.
How can the given conversion be carried out?
A.
The given conversion of ethene (H₂C = CH₂) to ethane (H₃C –...
View Question
Easy
1
Q.
Write the names of two bio-degradable polymers.
A.
Examples of biodegradable polymers : Polylactic acid (PLA) Polyhydroxybutyrate (PHB)
View Question
Easy
Q.
Explain the difference between minerals and ores.
A.
Minerals Ores Minerals are naturally occurring substances found in the Earth’s crust....
View Question
Easy
1
Q.
Name two copper containing alloys. State one use of each alloy.
A.
Two copper alloys: Copper Alloy Composition Uses Brass Copper (Cu): 60–80% Zinc...
View Question
Moderate
Q.
State the resistance of 220 V – 100 W bulb
A.
Power (P) = Resistance (R) = = = = 484 Ω
View Question
Moderate
Q.
For which value of the angle of incidence in refraction of light is Snell’s law...
A.
Snell’s law is not applicable when the angle of incidence is 0°.
View Question
Moderate
Q.
Write whether the following statement is true or false: If coefficient of linear expansion of...
A.
True Explanation: Coefficient of cubical expansion γ = 3 × coefficient of...
View Question
Moderate
Q.
What is the number of molecules present in 16 g of O₂ at S.T.P.?
A.
3.011 × 10²³ Explanation: Given mass = 16 g Molecular mass =...
View Question
Moderate
Q.
Write whether the following statement is true or false: According to Charles’ law, at (–)...
A.
False Explanation: Charles' law states volume becomes zero at absolute zero (-273°C),...
View Question
Moderate
Q.
Write the name of monomer of a polymer which is used to prepare non-stick utensils.
A.
Tetra fluoro ethylene Explanation: Polytetrafluoroethylene (PTFE or Teflon) is used for non-stick...
View Question
Moderate
Q.
Write down the IUPAC name of the following organic compound
A.
2-Bromopropane or (1) CH₃–CH₂–CH₂–OH → Propane-1-ol(2) CH₃–CH(OH)–CH₃ → Propane-2-ol
View Question