Total Price:

There are no items in this cart.
Continue Shopping

1. The blue complex formed on addition of conc. NH4OH
solution to a Cu2+ salt solution has the s tructure?
(a) [Cu(NH4)4]2+ (b) [Cu(NH3)2]2+
(c) [Cu(NH3)4]2+ (d) [Cu(NH4)2]2+
2. Sodium thiosulphate is used in photography to
(a) Reduce silver bromide to silver
(b) Convert metallic silver to silver salt
(c) Remove and decompose AgBr as a soluble silver
thiosulphate complex
(d) Remove reduce silver
3. The black compound formed during the reaction between
sodium thiosulphate and silver nitrate is
(a) Silver thiosulphate (Ag2S2O3)
(b) Silver sulphide (Ag2S)
(c) Sliver sulphate (Ag2SO4)
(d) Silver sulphite (Ag2SO3)
4. Parke’s process is used
(a) To extract Ag using NaCN
(b) To extract Cu using CuFeS2
(c) To extract Ag from argentiferrous lead
(d) To extract Ag by forming amalgam
5. The lanthanides contraction is responsible for the fact that
(a) Zr and Y have about the same radius
(b) Zr and Nb have similar oxidation state
(c) Zr and Hf have about the same radius
(d) Zr and Zn have the same oxidation state
6. Which of the following element is responsible for oxidation of
water of O2 in biological process?
(a) Fe (b) Mn
(c) Cu (d) Mo
7. In order to prepare one litre normal solution of KMNO4, how
many grams of KMNO4 are required if the solution is to be
used in acidic medium for oxidation?
(a) 158 g (b) 62.0 g
(c) 31.6 g (d) 790 g
8. The alloy best suited for making metre scales is
(a) Stainless steel (b) Invar
(c) Alnico (d) Tungsten steel
9. Molecular formula of corrosive sublimate is
(b) H (b) Hg2Cl2
(d) HgS (d) HgCl
10. Wrought iron :
(a) Pure iron with 0.1 to 0.2% C
(b) Pig iron
(c) An alloy of steel
(d) Impure sulphide ore iron
11. In the manufacture of iron from haematite, limestone is
added to act as :
(a) Flux (b) Slag
(c) A reducing agent (d) An oxidizing agent
12. An extremely hot copper wire reacts with steam to give
(a) CuO (b) Cu2O
(c) Cu2O2 (d) CuO2
13. Copper displaces which of the metal from their salt solution?
(a) AgNO3 (b) ZnSO4
(c) FeSO4 (d) All of these
14. The colour of FeSO4.(NH4)2SO4.6H2O is
(a) Red (b) White
(c) Blue (d) Green
15. A white solid halide of mercury forms a black mixture
NH4OH. The halide is
(a) HgCl2 (b) HgCl2
(c) Hg2Cl2 (d) Hg2Cl2
16. Spelter is
(a) Impure Cu (b) Impure Zn
(c) ZnO (d) CuO
17. 18 carat gold contains
(a) 18% Gold (b) 24% Gold
(c) 75% Gold (d) 60% Gold
18. Colourless solutions of the following four salts are palced
separately in four different test tubes and a strip of copper is
dipped in each one these. Which solution will turn blue?
(a) KNO3 (b) AgNO3
(c) Zn(NO3)2 (d) ZnSO4
19. Which of the following is used in the preparation of chlorine?
(a) Only MnO2 (b) Only KMnO4
(c) Both MnO2 and KMnO4 (d) Either MnO2 or KMnO4

3 years ago


Answers : (1)

Answers :

1. b
2. a
3.Silver thiosulphate
4.To extract Ag from argentiferrous lead
5.Zr and Hf have about the same radius
6. Fe
7. 62 gm
8. Steel
9. Hg Cl2
10.Pure iron with 0.1 to 0.2% C
11. c
12. d
13. ZnSO4
14. Green
15. d
16. impure zinc
17. 75% gold
19. only MnO2

Thank You
Askiitians Faculty
one year ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
how to caluculate screenig constant
Dear student, We know that in quite a few atoms, each of the constituent electron is said to experience less than the actual nuclear charge because of shielding or screening by the other...
Sumit Majumdar 8 months ago
anhydrous aluminium trichloride is covalen in nature. However, in aqueous solution it ionizes to give al3+ (aq) and cl-(aq). explain with the help of a born haber cycle
The born-Haber cycle tells about all the individual energy changes. The given compound is covalent burt when it is released in water due to very high hydration enthalpy, it overcomes the...
Naveen Kumar 4 months ago
PH 3 has a tetrahedral or a trigonal pyramidral structure??
You are partly right. Look at page 111 and 112. See basically, it all depends on the lone pair. Since there is a lone pair, it’ll be trigonal pyramidal. (BECAUSE OF THE LONE PAIR) if there...
riya 4 days ago
It is trigonal pyramidal, just like ammonia. Also, if you draw the structure of Ph3, you get sp2 + 1 lone pair which corresponds to the trigonal pyramidal structure.
riya 4 days ago
And it is AB3E
riya 4 days ago
2-Chloro-3,3-dimethylbutane or 3-Chloro-2,2-dimethylbutane... My teacher first one is correct but why is the second one not correct in terms of locant rule ?? Pls help PICTURE ATTACHED-
Dear student i have already explain this to you.Again understand this -- This compound has three substituents two methyls and one chlorine.Now according to IUPAC nomenclature,first select...
Aarti Gupta 3 days ago
The correct name of the above compound is –; 2-Chloro-3,3-dimethylbutane ThIs IUPAC name is correct because as per the rule when different substituents are present ,then numbering is...
Aarti Gupta 6 days ago
madam,but if we apply least sum rule …..3-chloro-2,2-dimethylbutane should be right answer ,rt8?pls explain
naina 6 days ago
Is 55 degree celsius considered cold?
The hottest temperature ever recorded in nature was in Death Valley, California. It was on July 10, 1913 and the temperature was 56.7 C (or, in US terms, 134 F). Was there about a month ago...
vikas yadav yesterday
The hottest temperature ever recorded in nature was in Death Valley, California. It was on July 10, 1913 and the temperature was 56.7 C (or, in US terms, 134 F). Was there about a month ago...
vikas yadav yesterday
0 is ice 10 is not 20 is nice 30 is hot.
vikas yadav yesterday
Sir, can you represent internuclear axis in figure
Internuclear axis is the line connecting two nuclei. Here the axis of orbital is different from the internuclear axis. in Sigma bond : Axes of both overlapping orbitals is same as the...
Ramreddy 5 months ago
axis of orbital is different from the internuclear axis ? in figure And how the axis of orbital can you represent internuclear axis &
Vineeth 5 months ago
View all Questions »