Tests of Chemistry (Intermediate) Chemistry MCQs (Intermediate) 1839 Welcome to Shaheen Leader Academy We expect 100% result. Click on Start Button. Your time is Ended. Thanks Chemistry (Intermediate) Quiz 1 / 25 Mark the correct statement:- Na+ is larger than Na Cl- is smaller than Cl Na+ is smaller than Na Cl- ion and Cl are equal 2 / 25 Covalent bond involves the: Repulsion of electron Sharing of electron Acceptance of electron Donation of electron 3 / 25 An active mass is considered as the molar concentrations in units of : Mole -4dm Mole dm-3 Mole -3dm Mole -2dm 4 / 25 The chemical formula of washing soda is: Na₂CO₃.6H₂O Na₂CO₃.10H₂O Na₂CO₃ Na₂CO₃.7H₂O 5 / 25 The number of significant figures in the number 0.0780is:- 3 4 2 1 6 / 25 The emission of light characteristics of metal and correlation of intensity of the light emitted with concentration of that metal from the basis of:- Raman spectroscopy rotational spectroscopy Flame spectroscopy IR spectroscopy 7 / 25 Which aldehyde is most reactive:- All of the above C6H5CHO CH3CHO HCHO 8 / 25 Equal masses of oxygen and methane are mixed in an empty container at 25°C. The fraction of total pressure exerted by oxygen is:- 1/3 8/9 16/17 1/9 9 / 25 The oxidation number of chromium In K₂Cr₂O₇ is +2 +14 +6 +7 10 / 25 Carbonates and bicarbonates react with dilute nitric acid to give: nitrogen peroxide and salt a.carbon dioxide and salt Nitrogen and oxygen. carbon and salt 11 / 25 Unsaturated nature of alkene can be detected by:- all Ozonolysis Decolorization of pink colour of KMnO4 solution Docolorization of red Br2 water in CCl4 12 / 25 When 6d orbital is complete, the entering electron goes into:- 7p 7d 7s 7f 13 / 25 In preparation of insoluble salts -------are mixed Soluble salt Insoluble salt Insoluble and soluble salt None 14 / 25 Atomic size of sodium atom is: 160,65pm 998pm 197,99pm 186,102pm 15 / 25 Sulphur is not present in:- Egg Fat Onion Garlic 16 / 25 Which of the following is a hybrid technique:- Capillary electrophoresis All of the above Flow injection analysis SEM-EDX 17 / 25 How much fresh water is used for domestic purposes:- 8% 69% 23% 100% 18 / 25 Which element is not present in all proteins:- Nitrogen Carbon Sulphur Hydrogen 19 / 25 RNA role as Transporter Messenger Synthesizer All of above 20 / 25 Which of the halides show bridge type structure:- AlCl3 CCl4 H2O NaCl 21 / 25 X-rays were discovered by:- Bohr Roentgen Schrodinger Rutherford 22 / 25 Which term refers to nearness between several measurements of the same quantity:- Standard deviation Standard error Precision Accuracy 23 / 25 At constant temperature the pressure of a gas becomes doubled, its density becomes:- None Half Same Double 24 / 25 Elements of group II-B are called:- Coinage metal group representative elements Non typical transition elements Transition elements 25 / 25 What are limitations of atomic emission spectroscopy:- error exceed 1-2% All of the above takes more time Radiations intensities are not always reproducible Your score is LinkedIn Facebook Twitter VKontakte Restart quiz Apply Here for Online Registration