Which of the following statements does not show Rutherford’s account of Nuclear Theory? An atom contains a region
- A. which contains protons and neutrons
- B. which is positively charged
- C. which is massive and can cause deflection of a few projectiles
- D. which is very large and in which close to 98% of projectiles pass undeflected
SO\(_3\) is not directly dissolved in water in the industrial preparation of H\(_2\)SO\(_4\) by the contact process because
- A. SO\(_3\) is an acidic gas
- B. Acid is usually added to water and not water to acid
- C. The reaction between SO\(_3\) and water is violently exothermic
- D. SO\(_3\) does not dissolve readily in water
Which of the following is a set of neutral oxides?
- A. N\(_2\)O, H\(_2\)O, CO
- B. N\(_2\)O, SO\(_2\), CO
- C. N\(_2\)O, Na\(_2\)O, ZnO
- D. N\(_2\)O, SO\(_3\), NO
Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?
- A. chlorine attacks the starch to give the blue-black color
- B. chlorine attacks the iodide ion to give the blue-black color
- C. chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color
- D. iodine attacks the starch to give the blue-black color
When chlorine water is exposed to bright sunlight, the following products are formed
- A. HCl\(_{(aq)}\) and Cl\(_2\)
- B. HOCl\(_{(aq)}\) and Cl\(_2\)
- C. HCl\(_{(aq)}\) and O\(_2\)
- D. HOCl\(_{(aq)}\) and O\(_2\)
Which of the following alkaline earth metals react more spontaneously with water?
- A. Calcium
- B. Beryllium
- C. Magnesium
- D. Strontium
Which of the following metals is the most essential in the regulation of blood volume, blood pressure and osmotic equilibrium?
- A. Zinc
- B. Manganese
- C. Sodium
- D. Iron
Which of the following is the best starting material for the preparation of oxygen? Heating of trioxonitrate (v) with
- A. Pb
- B. Zn
- C. Ca
- D. Na
Burning magnesium ribbon in air removes which of the following
(i) oxygen (ii) nitrogen (iii) argon and (iv) carbon(iv)oxide?
- A. i and iv only
- B. i, ii, iii and iv only
- C. i only
- D. i and ii only
A synthetic rubber is not obtained from the polymerization of?
- A. neoprene
- B. isoprene
- C. butandiene
- D. hexane
The IUPAC name of the compound CF\(_3\)CHBrCl is
- A. 2-chloro-2-bromo-1,1,1-trifluoroethane
- B. 2-bromo-2-chloro-1,1,1-trifluoroethane
- C. 1-bromo-1-chloro-2,2,2-trifluoroethane
- D. 1,1,1-trifluoro-2-bromo-2-chloroethane
Hydrocarbons which will react with Tollen’s reagent conform to the general formula
- A. C\(_n\)H\(_{2n}\)
- B. C\(_n\)H\(_{2n + 2}\)
- C. C\(_n\)H\(_{2n - 2}\)
- D. C\(_n\)H\(_{2n + 1}\)OH
2-methylprop-1-ene is an isomer of?
- A. 3-methyl but-1-ene
- B. 2-methyl but-1-ene
- C. but-2-ene
- D. pent-2-ene
A certain hydrocarbon on complete combustion at s.t.p produced 89.6dm\(^3\) of CO\(_2\) and 54g of water. The hydrocarbon should be?
- A. C\(_6\)H\(_6\)
- B. C\(_4\)H\(_{10}\)
- C. C\(_5\)H\(_{10}\)
- D. C\(_4\)H\(_6\)
The IUPAC name for CH\(_3\)CH\(_2\)COOCH\(_2\)CH\(_3\) is
- A. methylpropanoate
- B. ethylethanoate
- C. ethylpropanoate
- D. methylethanoate
Which of the following will give a precipitate with an aqueous solution of copper (I) chloride?
- A. But-2-ene
- B. But-1-ene
- C. But-2-yne
- D. But-1-yne
A secondary alkanol can be oxidized to give an?
- A. alkanone
- B. alkyne
- C. alkanoic acid
- D. alkanal