| 1 |
Which of the following has highest M.P |
- A. Aluminium
- B. Silicon
- C. Phosphorus
- D. Sulphur
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| 2 |
Which one of the following sets has coinage metaals is it. |
- A. Cu, Hg, Au
- B. Cu, Ag, Au
- C. Ag, Au, Hg
- D. Cu, Fe, Au
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| 3 |
<div>Which hydride is intermediate in nature.</div> |
- A. NaH
- B. BeH2
- C. NH3
- D. HCl
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| 4 |
Which of the following are alkaline earth metals? |
- A. Be, Mg, Ca
- B. Li, Na, K
- C. Fe, CO, Ni
- D. B, Al, Ga
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| 5 |
The first ionization energy of Na, Mg, Al and Si are in theorder of. |
- A. Na < Mg < Al < Si
- B. Na > Mg> Al> Si
- C. Na > Mg< Al< Si
- D. Na< Mg> Al< Si
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| 6 |
The concept of atomic number was introduced by |
- A. Alrazi
- B. Mendeleeve
- C. Moseley
- D. Dobereiner
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| 7 |
Which one of the following elements burns in air to form an oxide which, when shaken with water, give a solution with a pH greater than 7. |
- A. Carbon
- B. Magnesium
- C. sulphur
- D. Hydrogen
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| 8 |
The basis of modern periodic table is |
- A. Electron affinity
- B. Atomic mass
- C. Ionization Potential
- D. Atomic number
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| 9 |
In which block of periodic table non metals are present. |
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| 10 |
What criteria did Mendeleev use in arranging his periodic table. |
- A. Atomic mass
- B. Atomic number
- C. Mass number
- D. Density
|