Chemistry Test 195

Result

Chemistry Test 195

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Weekly Quiz Competition

Question 1
4 / -1

A
0.52

B
1.04

C
1.34

D
0.052

Solution
Question 2
4 / -1

Directions For Questions

Consider the following relations for emf of an electrochemical cell:

(i) emf of cell = (Oxidation potential of anode) – (Reduction potential of cathode)
(ii) emf of cell = (Oxidation potential of anode) + (Reduction potential of cathode)
(iii) emf of cell = (Reduction potential of anode) + (Reduction potential of cathode)
(iv) emf of cell = (Oxidation potential of anode) – (Oxidation potential of cathode)

...view full instructions

Which of the above relations are correct?

A
(ii) and (iv)

B
(iii) and (i)

C
(i) and (ii)

D
(iii) and (iv)
Question 3
4 / -1

3A → B + C, it would be a zero order reaction when

A
the rate of reaction is proportional to square of concentration of A

B
the rate of reaction remains same at any concentration of A

C
the rate remains unchanged at any concentration of B and C

D
the rate of reaction doubles if concentration of B is increased to double

Solution
Question 4
4 / -1

At the Critical Micelle Concentration (CMC) the surfactant molecules

A
decompose

B
dissociate

C
associate

D
become completely soluble

Solution

The critical micelle concentration is the lowest concentration at which micelle formation appears. When surfactants are present above that CMC, they can act as emulsifiers that will solubilize a compound which is normally insoluble in the solvent being used.
Question 5
4 / -1

Which of the following statements is correct ?

A
Gangues are carefully chosen to combine with the slag present in the ore to produce easily fusible flux to carry away the impurities

B
Slags are carefully chosen to combine with the flux present in the ore to produce easily fusible gangue to carry away the impurities

C
Gangues are carefully chosen to combine with the flux present in the ore to produce easily fusible slag to carry away the impurities

D
Fluxes are carefully chosen to combine with the gangue present in the ore to produce easily fusible slag to carry away the impurities
Question 6
4 / -1

Shapes of certain interhalogen compounds are stated below. Which one of them is not correctly stated?

A

B

C

D

Solution
Question 7
4 / -1

A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is

A

B
HgO

C

D

Solution
Question 8
4 / -1

Which of the following organometallic compound is s and p -bonded ?

A

B

C

D

Solution
Question 9
4 / -1

The major product formed when 1, 1, 1-trichloropropane is treated with aqueous potassium hydroxide is:

A
Propyne

B
1-Propanol

C
2-Propanol

D
Propionic acid

Solution
Question 10
4 / -1

Widespread deaths due to liquor poisoning occurs due to

A
presence of carbonic acid in liquor

B
presence of ethyl alcohol in liquor

C
presence of methyl alcohol in liquor

D
presence of lead compounds in liquor

Solution

Due to presence of methyl alcohol in liquor.