The study of internal structure of the earth is...
The study of internal structure of the earth is called:
Heat | |
Atomic Physics | |
Geo Physics | |
Sound |
All Question of 9th Class
9th Class
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Which one of the following non-metals is extrem...
Which one of the following non-metals is extremely hard?
Diamond | |
Phosphorous | |
Graphite | |
Iodine |
Electronegativity of chlorine is.
Electronegativity of chlorine is:
3 | |
4 | |
3.2 | |
2.7 |
Metal alloy is an example of.
Metal alloy is an example of:
Gas in Liquid | |
Liquid in Gas | |
Solid in Solid | |
Liquid in Solid |
Which one of the following will not react with ...
Which one of the following will not react with dilute HCI:
Calcium | |
Carbon | |
Potassium | |
Sodium |
In which cell spontanious reaction takes place?
In which cell spontanious reaction takes place?
Electroletic cell | |
Galvanic Cell | |
Down's | |
Jaxon cell |
The oxidation number nitrogen in HNO3 is.
The oxidation number nitrogen in HNO3 is:
-3 | |
6 | |
5 | |
3 |
Air is an example of solution.
Air is an example of solution:
Solid in Solid | |
Solid in Liquid | |
Gas in Liquid | |
Gas in Gas |
Which is weak electrolyte?
Which is weak electrolyte?
NaOH | |
H2SO4 | |
CH3COOH | |
HCl |
The oxidation number of oxygen in of2 is.
The oxidation number of oxygen in of2 is:
1 | |
-1 | |
2 | |
-2 |
Tyndall effect is shown by.
Tyndall effect is shown by:
Paints | |
Jelly | |
Sugar solution | |
Chalk solution |
Metals have generally.
Metals have generally:
High ionization value | |
High electron afffinity value | |
High electro-negativity value | |
Low ionization value |
Pure Water is an example of .
Pure Water is an example of :
Weak electrolyte | |
Strong electrolyte | |
stronge base | |
Strong acid |
Addition of oxygen during chemical reaction is ...
Addition of oxygen during chemical reaction is called:
Reduction | |
Evaporation | |
Oxidation | |
Condensation |
Which one of the following element is the light...
Which one of the following element is the lightest and floats on water?
Ca | |
Na | |
Li | |
Mg |
Anode of Down's cell is made of .
Anode of Down's cell is made of :
Graphite | |
Zinc | |
Copper | |
Steel |
Which of the following electrolyte produce less...
Which of the following electrolyte produce less ions in water
HaOH | |
NaCl | |
Ca(OH)2 | |
H2SO4 |
The oxidation number of oxygen in peroxide is.
The oxidation number of oxygen in peroxide is:
0 | |
2 | |
-1 | |
1 |
Melting point of sodium is.
Melting point of sodium is:
97°C | |
98°C | |
96°C | |
95°C |
The oxidation number chlorine in KClO3.
The oxidation number chlorine in KClO3:
5 | |
4 | |
3 | |
6 |