TRB Chemistry Exam Question Paper

Will you please provide the Question Paper of the TRB Chemistry Exam ?

[Arun Vats]

Here is the list of few questions of TRB Chemistry Exam Question Paper which you are looking for .

The elements with the highest electronegative character is
A. Halogens
B. Alkali metals
C. Transition elements
D. Alkaline earth metals

Number of amino acids that can be synthesized by the human body is
A. 10
B. 15
C. 20
D. 25

The atomic number of elements were discovered by
A. Lother Meyer
B. Newland
C. Mendeleev
D. Mosley

The chemical name for the compound having formula NaoH is
A. Sodium hydroxide
B. Caustic potash
C. Soda ash
D. Caustic soda

In the periodic table, the elements present in the groups from 3 to 12 are known as
A. s–block
B. d–block
C. p–block
D. f–block

26. Crude petroleum is refined by
• A. Distillation
• B. Fractional distillation
• C. Fractional crystallization
• D. None of these

27. Vapour density of pure ozone is
• A. 16
• B. 24
• C. 32
• D. 48


28. Which of the following is not a homogenous mixture?
• A. Smoke
• B. Petrol
• C. Air
• D. Brass

29. The valency of bicarbonate ion is
• A. 1
• B. 2
• C. 3
• D. 4

30. The valency of sulphate ion is
• A. 1
• B. 2
• C. 3
• D. 4
31. Which of the following is an example of Metalloid?
• A. Oxygen
• B. Copper
• C. Antimony
• D. None of these

32. The gas liberated when zinc reacts with dilute H2SO4 is
• A. SO2
• B. SO3
• C. H2
• D. O2


33. The percentage of oxygen in NaOH is
• A. 16
• B. 32
• C. 40
• D. 48

34. The Law of constant composition was discovered by
• A. Lavoisier
• B. Dalton
• C. Proust
• D. None of these

35. Gobar gas mainly contains
• A. Methane
• B. Carbon dioxide
• C. Hydrogen sulphide
• D. Carbon monoxide
36. The colour of the gas liberated when lead nitrate heated is
• A. Colourless
• B. Yellow
• C. Brown
• D. Red

37. The growing plants need which one of the following elements in largest quantity?
• A. Nitrogen
• B. Phosphorous
• C. Calcium
• D. Ammonia


38. Which carbohydrate is NOT a hexose?
• A. Lactose
• B. Glucose
• C. Fructose
• D. Mannose

39. The chemical used in the washing of film rolls is
• A. Soda Lime
• B. Sodium Hydrogen
• C. Sodium Thiosulphate
• D. Sodium Chloride

40. The type of bond in Calcium chloride is
• A. Ionic Bond
• B. Covalent Bond
• C. Co–ordinate Bond
• D. Dative Bond