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Question 1.State Mendeleev s Periodic law.Answer:Medeleev’s periodic law states that the properties of elements are periodic function of their atomic

Question 1.State Mendeleev s Periodic law.Answer:Medeleev’s periodic law states that the properties of elements are periodic function of their atomic

Question 1.All the variations in a species do not have equal chances of survival. Why? (Foreign 2014)Answer:All the variations do

NCERT Solutions for Class 10 Social Science Geography Chapter 1 Resource and Development Multiple choice questions:(i) Which one of the following

NCERT Solutions for Class 10 Social History Chapter 8 Novels, Society and History Q.1. Explain the following :(a) Social changes

Question 1.Newly formed DNA copies may not be identical at times. Give one reason. (AI2017)Answer:When a cell reproduces, DNA replication

Question 1.With the help of an example explain what happens when a base reacts with a non- metallic oxide. What

Question 1.Covalent compounds have low melting and boiling point. Why? (2020)Answer:Covalent compounds have low melting and boiling points because the

NCERT Solutions for Class 10 Social History Chapter 7 Print Culture and the Modern World Q.1. Give reasons for the

NCERT Solutions for Class 10 Social History Chapter 7 Print Culture and the Modern World Q.1. Give reasons for the