D. क्योंकि elements chemical bonds से जुड़े हैं/Because elements are joined by chemical bonds
Step 1
Concept
In a compound components are chemically bonded. Therefore physical separation generally does not work.
Step 2
Why this answer is correct
The correct answer is D. क्योंकि elements chemical bonds से जुड़े हैं / Because elements are joined by chemical bonds. In a compound components are chemically bonded. Therefore physical separation generally does not work.
Step 3
Exam Tip
Compound में components chemically bonded होते हैं। इसलिए physical separation generally काम नहीं करती।
A. pure substances elements compounds और mixtures की पहचान करें/Identify pure substances elements compounds and mixtures
Step 1
Concept
Chemical classification is based on composition. Remember elements compounds mixtures solutions colloids and suspensions with examples.
Step 2
Why this answer is correct
The correct answer is A. pure substances elements compounds और mixtures की पहचान करें / Identify pure substances elements compounds and mixtures. Chemical classification is based on composition. Remember elements compounds mixtures solutions colloids and suspensions with examples.
Step 3
Exam Tip
Chemical classification composition पर आधारित है। Elements compounds mixtures solutions colloids और suspensions को examples से याद रखें।
