Chemistry Test 165

Result

Chemistry Test 165

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Weekly Quiz Competition

Question 1
4 / -1

The metal ‘X’ is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on treatment with water. The metal is

A
Al

B
Ca

C
Cu

D
Zn

Solution
Question 2
4 / -1

Total number of all isomeric ethers having molecular formula is

A
6

B
5

C
7

D
8

Solution
Question 3
4 / -1

A

B

C

D

Solution

is the most stable species in the given set of ions because it does not contain any electron withdrawing group.

In the remaining ions electron withdrawing is present which decreases the stability of ions.
Question 4
4 / -1

The product formed on reaction of 1-chlorobutane with alcoholic potash is

A
butan-2-ol

B
butan-1-o

C
but-2-ene

D
but-1-ene

Solution
Question 5
4 / -1

The IUPAC name of the compound is

A
2-bromo-4-methylpentan-3-one

B
4-bromo-2-methylpentan-3-one

C
2, 4-bromo methylpentan-3-one

D
4-bromo-2-methylpentan-2-one

Solution
Question 6
4 / -1

The ratio of velocities of diffusion of gases A and B is 1 : 5. If the ratio of their masses present in the mixture is 3 : 2 , the ratio of their mole fraction is

A
3 : 50

B
1 : 25

C
50 : 3

D
25 : 1

Solution
Question 7
4 / -1

A solution that is 20% ethanol by volume is found to have a density of 0.977 g/mL. Density of ethanol is 0.789 g/mL. Thus, mass per cent of ethanol solution is

A
18.72%

B
16.15%

C
7.89%

D
9.77%

Solution
Question 8
4 / -1

4.8 g of a gas at 25° C occupied the same volume as 0.152 g of hydrogen at 17° C and at the same pressure. The molecular mass of the gas is

A
39.14

B
85.83

C
64.90

D
59.14

Solution
Question 9
4 / -1

The formula of an oxide of titanium that crystallises as a closely packed array of oxygen atoms with titanium atoms in two third of the octahedral voids is

A

B

C

D

Solution
Question 10
4 / -1

Two bulbs A and B (containing an ideal gas) having volume 5 L and 10 L and pressure of 9 atm and 6 atm respectively are connected. If the temperature remains constant, then the final pressure in the two bulbs will be

A
28 atm

B
14 atm

C
10 atm

D
7 atm

Solution