MEDIUM
9th ICSE
IMPORTANT
Earn 100

What is Newland’s Law of Octaves? Explain with the help of examples.

Important Questions on Periodic Table

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 3
Why was the Newland’s Law of Octaves discarded?
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 4
Elements lithium, sodium and potassium were placed in one group on the basis of their similar properties. What are those similar properties?
 
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 4
Elements lithium, sodium and potassium were placed in one group on the basis of their similar properties.
What is the usual name of this group?
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 5

Elements calcium, strontium and barium were put in one group on the basis of their similar properties. State those similar properties.

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 6
State Mendeleev’s Periodic Law.
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 7
What was the Mendeleev’s basis for the classification of elements?
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 8
State two merits and two demerits or anomalies of Mendeleev’s classification of elements.
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 6 - Periodic Table>Questions>Q 10
Name an element whose properties were predicted on the basis of its position in Mendeleev's periodic table.