Mymensingh Girls' Cadet
College
Subject Code - 137
Test
examination-2009
|
Subject Code - 137
|
Class-X
Subject : Chemistry ( Objective)
Time : 35 Minutes Marks:
35
1. Which type
of compound forms due to oxidation of alchohol ?
a) carboxylic acid b) ester
c) Aldehyde d)
amine
2. Which is the
represented with R?
a) alkanes b) alkyle group
c) aryle groups d) alkenes.
3. Which is the first organic compound is discovered in
laboratory?
a) Ammonium cyanate
b) Methane c) Carbonate
d) Urea
4. What is the formula of fuming sulphuric acid?
a) Conc. H2 SO4 b) H2 SO3
c) H2 S2 O7 d) H2SO4
5. Which gas is needed to burn fuel in rockets?
a) Hydrogen b) Oxygen
c) Sulphur di oxide d) Nitrogen.
6. What is the Small of ammonia?
a) painful b) bad small
c) rooten smell d) Pungent
7. What is s slacked lime?
a) CaO b) Ca (OH)2
c) Ca CO3 d) Ca ( HCO3)2
8. Which metal does not give any colour in flame test ?
a) Na b) Mg
c) Ca d) Cu
9. Which Compound is prepared by Solvay process?
a) CaO b) Ca CO3
c) Na2 CO3 d) NaOH
10. For the
extraction of which metal carbon is used as anode?
a) Na b) Fe
c) Cu d) Pb
11. Which is oxidizing
agent in the given reaction? Zn + Cu2+ = Zn2+ + Cu
a) Zn b) Cu2+
c) Zn 2+ d) Cu
12. What is the bond energy of c -ed bond?
a) 414 kj/mol b) 326 kj/ mol
c) 431 d) 244 kj/ mol
13. What is the standard
temperature in thermochemical reaction?
a) O0 K b) 298 K
c) 25 K d) 273 K
14. What is the
charge of 1 Faraday?
a) 95600 C b) 96500 C
c) 965000 C d) 99500 C
15. Which ion is
least reactive in reactivity series?
a) Cl- b) SO42-
c) OH- d) Br -
16. What is the
optimum temperature of production of SO3.
a) 400-5000C b) 450-5500C
c) 500-6000C d) 550-6500C
17. At
equilibrium for a reversible reaction if temperature is increased. Which effect
are caried out by equilibrium position.
a) Shift to left b) does not shift.
c) Shift to right d) No one is correct
18. The reaction 2
Fecl2
+ Cl2
= 2 Feel3, is the type of?
a) Oxidation reduction b)
decomposition
c) hydrolysis d) neutralization.
19. Which one is
the fundemental condition for a chemical reaction?
a) light b) Contact
c) heat d) pressure.
20. How Ozone is
formed from oxygen?
a) by bright sunlight
b) reaction among oxygen at normal temperature
c) by silent electric discharge
d) reaction with oxygen out air.
21. Which
reaction needs sunlight to proceed?
a) 2H2O =
H2
+ O2
b) CH4 + Cl2
= CH3 Cl + HCl
c) K ClO3 = KCl + O2
d) NaCl + AgNO3
= Na NO3 + AgCl
22. Which is
needed for hydrolisis reaction?
a) Hydrogen b)
Hydrogen and oxygen
c) only oxygen d) Water
23. What is the
atomic mass of NH3
molecule?
a) 34 b)
17 c) 18
d) 16
24. Which is the
group -II element of periodic table?
a) Ba b) O
c) Al d) Na
25. Which is
halogen below ?
a) O b)
He
c) I d) S
26. Who
discovered the atomic number?
a) Moseley b) goldberg
c) Chadwick d) Dalton
27. What is the
shape of CO2
molecule?
a) angular b) Pyramidal
c) Linear d) no one is correct
28. Why metals
are opaque to light?
a) for the nature of sunlight
b) because metals are malleable
c) They are ductile.
d) Due to their free electron
29. What is the
boiling point of CH4?
a) - 1830C b) - 1620 C
c) -1730C d) -1900C
30. In which
substance the inter molecular space is high?
a) Water b) graphite
c) ice d) Oil
31. In which year
British botanist Robert brown Observed browion movement?
a) 1803 b) 1627
c) 1827 d) 1927
32. What is the
percentage composition of Hydrogen in H2 O2?
a) 11.1% b) 8.88%
c) 10% d) 5.88%
33. What is the
valence of cyanide radical ?
a) 2 b) 1
c) 3 d) 0
34. Which
element shows variable valences?
a) D b) F
c) N d)
Mg
35. What is the
radius of an atom.
a) 10-7 b) 10 -9 cm
c) 10-4 cm d) 10 -8 cm
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