Chemistry Test 146

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Chemistry Test 146

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Weekly Quiz Competition

Question 1
4 / -1

Directions For Questions

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Select the correct statement regarding the above experiment

A
Y is brown solution of [Co(CN)₆]^4–

B
Y is paramagnetic

C
Z is diamagnetic

D
All are correct
Question 2
4 / -1

Directions For Questions

A substance "A" which is a yellow coloured solid partially dissolves in aqueous ammonia. The substance in also soluble in hypo solution with which it shows complex formation. The complex "B" on heating gets converted to a black solid "C".

The solid "C" when mixed in concentrated HCl & conc. HNO₃ gives a white ppt. 'D' which is soluble in NH₃.

...view full instructions

Identify CORRECT statements.

A
Between "D" & "A", "D" is more soluble in water.

B
The white ppt. "D" is also soluble in conc. NaCl solution.

C
The white ppt. "D" when mixed with AgNO₃ solution shows significant tyndall effect.

D
All are correct

Solution
Question 3
4 / -1

Only one metal in the form of precipitate or solution can be separated from the mixture of HgS, CuS, PbS, Sb₂S₃ by using :

A
yellow ammonium sulphide

B
dil. HNO₃

C
dil. HCl

D
option 1 and option 2 are correct
Question 4
4 / -1

Which of the following give 1º alcohol as a major product :

A

B

C

D
All are correct
Question 5
4 / -1

Which pair can be distinguish by iodoform test

A
1-propanol, 2-propanol

B
2-pentanone, 3-pentanone

C
1-chloro propane, 2-chloro propane

D
All are correct
Question 6
4 / -1

The intermediate(s) of the reaction is / are

A

B

C
:CCl₂

D
option 1 and option 3 are correct
Question 7
4 / -1

A may be

A
NaNH₄HPO₄.4H₂O

B
Na₂B₄O₇.10H₂O

C
CuSO₄.5H₂O

D
option 1 and option 2 are correct
Question 8
4 / -1

Glassy transparent bead (B) may be

A
B₂O₃ + 2NaBO₂

B
NaPO₃

C
CuO

D
option 1 and option 2 are correct
Question 9
4 / -1

Directions For Questions

(a) Syn Addition :- Addition of 2-groups from same side of double bond is known as Syn addition and various products formed during reaction are

(I) Syn Addition at cis Alkene

(b) Anti Addition :- Addition of 2-groups from opposite side at double bond is known as anti addition

(i) Anti addition at trans alkene

...view full instructions

A

B

C

D
Question 10
4 / -1

Directions For Questions

(a) Syn Addition :- Addition of 2-groups from same side of double bond is known as Syn addition and various products formed during reaction are

(I) Syn Addition at cis Alkene

(b) Anti Addition :- Addition of 2-groups from opposite side at double bond is known as anti addition

(i) Anti addition at trans alkene

...view full instructions

Fumeric acid product

A

B

C

D
Both (A) & (C) are correct