Chemistry
Structure-Of-Atom
Easy
Question
For any given series of spectral lines of atomic hydrogen, let
be the difference in maximum and minimum frequencies in cm–1 . The ratio 
is :
- 4 : 1
- 9 : 4
- 27 : 5
- 5 : 4
The correct answer is: 9 : 4
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Which one of the following about an electron occupying the 1s orbital in a hydrogen atom is incorrect ? (The Bohr radius is represented by a0).
Which one of the following about an electron occupying the 1s orbital in a hydrogen atom is incorrect ? (The Bohr radius is represented by a0).
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Which of the following statements is false regarding Arrhenius concept?
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Which of the following statement is the limitation of Arrhenius concept?
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Assertion: C2H5OH is as an Arrhenius base.
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A substance that can donate the OH- ion -
A substance that can donate the OH- ion -
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Match the following:
| COLUMN – I | COLUMN - II |
| A. Hydrochloric acid | (i) Arrhenius weak acid |
| B. Sodium hydroxide | (ii) Arrhenius strong base |
| C. Carbonic acid | (iii) Arrhenius strong acid |
| D. Aluminum hydroxide | (iv) Arrhenius weak base |
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| A. Hydrochloric acid | (i) Arrhenius weak acid |
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Sam has two solutions, A and B, containing sodium chloride and acetic acid solution, respectively. Out of sodium chloride and acetic acid, which is a strong electrolyte?
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Consider the reaction given below:
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What is the indication shown in the reaction?
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What is the indication shown in the reaction?
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ChemistryGrade-11
