1. Catenation is the linkage of carbon with others.
- (a) Oxygen atom
- (b) carbon atom
- (c) Nitrogen atoms
- (d) halogens
2. Is oxygen attached on both sides to a carbon atom?
- (a) Alchohol
- (b) ketone
- (c) Aldehyde
- (d) Ether
3. Which one of the following is a substitution reaction?
- (a) Halogenation of alkynes
- (b) halogenations of alkenes
- (c) Halogenation of alkanes
- (d) oxidation of alkene
4. Halogenations of methane in the presence of diffused sunlight occurs.
- (a) Quickly, only in one step
- (b) slowly, only in one step
- (c) In a series of four steps
- (d) quickly, in two-step
5. Dehydrohalogenation of alkyl halide is?
- (a) Removal of hydrogen
- (b) removal of halogen
- (c) removal of hydrogen and halogen
- (d) addition of hydrogen and halogen
6. Which one of the following decolorizes Br2 water?
- (a) Ethane
- (b) Propane
- (c) ethene
- (d) methane
7. Substitution reaction is the characteristic of?
- (a) Alkynes
- (b) Alkenes
- (b) All of these
- (d) none of these
8. Which one is the least reactive?
- (a) Ethyne
- (b) ethene
- (c) propene
- (d) Ethane
9. Which one of the following is a disaccharide?
- (a) Glucose
- (b) Sucrose
- (c) fructose
- (d) starch
10. A large number of amino acids polymerizes into?
- (a) Vitamins
- (b) carbohydrates
- (c) Protein
- (d) Lipids
11. Absorption of CO2 in KOH solution during combustion analysis is
- A) Chemical change
- B) Neither chemical nor physical change
- C) Physical change
- D) CO2 absorbed in Mg(CIO4)2
12. Which of the following compounds has highest percentage of oxygen by weight
- A) CH3OH
- B) C2H5OH
- C) HCOOH
- D) H2O
13. Which of the following compounds have empirical formula, but no molecular formula
- A) H2O
- B) H2O2
- C) C6H6
- D) NaCl
14. The sole products of combustion analysis are
- A) CO2 and NH3
- B) CO2 and KOH
- C) H2O and Mg(ClO4)2
- D) CO2 and H2O
15. An acid with molecular mass 104 contain 34.6%C, 3.85% H and rest is O. The molecular formula of acid is
- A) C3H4O4
- B) C2H2O
- C) C2H2O4
- D) C2HO2
16. 6Na +Fe2O33Na2O+2Fe
For above reaction , if you are provided with 230g Na and 320 Fe2O3, then limiting reactant is
- A) Na
- B) Fe2O3
- C) Na2O
- D) None of these
17. Mg reacts with HCl as per the following reaction
Mg(S) + 2HCl(aq)MgCl2 (aq) + H2 (g)
Given that; Mg = 21g and HCl = 21g, the excess reactant is;
- A) Mg
- B) Both are in stoichiometric amounts
- C) HCl
- D) None of theses
18. Number of moles present in 0.6 gram of silica is ( Atomic mass Si = 28, O = 16)
- A) 0.01 mole
- B) 0.064 mole
- C) 0.044 mole
- D) 0.054 mole
19. What volume of oxygen is required for complete combustion of 5cm3C2H2
- A) 2cm3
- B) 12.5 cm3
- C) 5cm3
- D) 13.5cm3
20. Volume occupied by 4.4g of CO2 at STP is
- A) 2.24dm3
- B) 112cm3
- C) 22.4dm3
- D) 1.12dm3
21. 207 dm3 of methane at STP has__________ moles of hydrogen atom
- A) 4
- B) 8
- C) 2
- D 16
22. How much Al is required to form alumina with 12g of oxgen
- A) 27g
- B) 54g
- C) 13.5g
- D) 24g
23. The actual yield is always less than the theoretical yield due to
- A) Side reaction
- B) mechanical loss
- C) Reversible nature
- D) All of these
24. Indicates the incorrect statement from the following
- A) A limiting reactant is consumed at eh end of reaction
- B) Actual yield is always greater than theoretical yield
- C) Stochiometric calculation can be only done if no side reaction happens
- D) The empirical formula and molecular of some of compounds are same
25. Which one is the molar volume of the gas at STP?
- A) 24dm3
- B) 22.4dm2
- C) 80dm3
- D) 40dm3
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| Test 6 | Test 7 | Test 8 | Test 9 | Test 10 |
