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Subjects
Science State Board
Class 9
Periodic classification of elements
The different types of periodic table and it's elements

12. Choose the correct answer: Mendeleev's Periodic Table

Exercise condition:

5 m.

Find the options based on Mendeleev's Periodic Table:

1. Select the general formulas that correspond to the higher oxide __________ , and hydrogen __________ compound of element \(B\).

\(RO_2\)
\(R_3O_3\)
\(R_2O_7\)
\(R_2O_3\)
\(RO_3\)
\(R_2O\)
\(RO\)
\(R_2O_5\)

\(RH_4\)
\(RH_3\)
\(RH\)
\(RH_7\)
\(RH_6\)
\(RH_5\)
\(R_1H_7\)
\(RH_2\)

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