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1)
If the reactant or product of a chemical reaction can absorb ultraviolet, visible or infra-red radiation then the rate of a chemical reaction can be best be measured by which one of the following methods?
- A) Chemical method
- B) Spectrometry
- C) Graphical method
- D) Differential method
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2)
For the reaction 2NO + O2 <------>2NO2 the rate equation for the forward reaction is:
- A) A) Rate= K [NO] [02]
- B) Rate= K [NO]-2 [O2]
- C) Rate = K [NO2]2
- D) Rate = K [NO2]
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3)
Arrange the following elements according to the trends of ionization energies:
- A) Ne◄N◄C◄B
- B) B◄N◄C◄Ne
- C) B◄C◄N◄Ne
- D) Ne◄B◄C◄N
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4)
Q.65 Radon is ______ emitter and being radioactive is use in ____treatment in radiotherapy:
- A) Beta,cancer
- B) Alpha, cancer
- C) Alpha, kidney stone
- D) Beta, kidney stone
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5)
Which one of the following noble gases is used for providing an inert atmosphere for welding?
- A) Helium
- B) Neon
- C) Argon
- D) Krypton
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6)
The pH of acid rain is?
- A) 7
- B) Between 5 and 7
- C) Below 5
- D) Between 7 and 14
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7)
Q.68 The percentage of carbon in different types of iron products is in the order of:
- A) Cast iron > Wrought iron > Steel
- B) Wrought iron > steel > Cast iron
- C) Cast iron > steel > Wrought Iron
- D) Cast Iron > Steel=Wrought Iron
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8)
Which one of the following compound is ktone?
- A) CH2-O-CH2-CH3
- B) CH3-CO-CH2-CH3
- C) CH3COCOOH
- D) CH3-CH2CHO
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9)
Addition of unsymmetrical reagent to an unsymmetrical alkene is governed by:
- A) Cannizaro`s Reaction
- B) Krichoff Rule
- C) Aldol condensation
- D) Markownkov`s Rule
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10)
Ethylene glycols are used as:
- A) Anaesthetic
- B) Knocking agent
- C) Freezing agent
- D) Anti-freezing agent