Question

rite True/False for the following:
1. Hydrogen's position is controversial in
Mendeleev's Periodic Table.
2. In Mendeleev's Periodic Table no element
with higher atomic mass was placed before
any other element with lower atomic mass.
3. Two atoms of hydrogen combine with one
atom of oxygen to form an oxide.
4. One atom of sodium combines with one
atom of oxygen to form an oxide.
5. Four atoms of hydrogen combine with one
atom of carbon to make a compound.
Short Answer Type Questions:
1. Write the formulae for chloride, oxide and
sulphide of hydrogen.
2. What are the similarities between hydrogen
and halogens?
3. Why did Mendeleev leave some gaps in his
periodic table? How was he proven correct
by doing so?
4. Make a table to show comparisons between
properties of Eka-aluminium and gallium.
Long Answer Type Questions:
1. Discuss some salient features of
Mendeleev's Periodic Table.​

Answer 1

Answer:

glkfgkkovglgjlflibrkkeehcufj

1f 2t3f4f5t6f

Answer 2

Answer:

1) true

2) false

3) true

4) true

5) true