MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping

X

“Hurray! You have won the gift voucher. Redeem your points now."

X

                   

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

Share

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
18.a
19. only MnO2


Thank You
Ruchi
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
Vouchers
To Win!!!
Click Here for details
it is difficult to calculate internal energy U ,however ∂U can be easily determined why??explain with example
 
 
According to Einstein's equation U=mc 2 we can calculate absolute energy of a body,but in this expresssion the term c 2 reffered to the energy of any system which is quite large and...
  img
Aarti Gupta 7 months ago
 
Thanks
 
Deepak Bohra 7 months ago
what are oxygenated ions?
 
 
dimethyl ether and oxygen
 
badugu omkar 5 months ago
 
dimethyl ether and oxygen
 
badugu omkar 5 months ago
Sir, What is the best book for Inorganic Chemistry?
 
 
i think J D Lee
 
Abhishek Singh 6 months ago
 
op tandan
 
Rajeev kushwaha 6 months ago
how to identify meta direction groups
 
 
-R groups are meta directing groups. The pull the electrons towards them so the electron density on ortho and para position decreases so in a way the electron density in meta position is...
 
Neeti yesterday
identify the least stable among the following a.Li - B - Be- C-
 
 
Among the following species Be- will be least stable because-- Be has atomic no. 4 thus configuration is 1s 2 ,2s 2 .Configuration indicates that its 2s sub-shell is fully-filled so it will...
  img
Aarti Gupta 15 days ago
please i need a detailed explanatino of ionic reactions from the very beging i do need a detailed explanation of redox reactions with examples
 
 
what exactly is your doubt? give a sample question and ill explain it (:
 
Neeti 2 days ago
View all Questions »