Given, the value of Rydberg constant is 107 m-1, the wave number of the last line of the Balmer series in hydrogen spectrum will be:
2.
3.
4.
When copper is heated with conc. HNO3 it produces
1. Cu(NO3) and NO
2. Cu(NO3)2, NO and NO2
3. Cu(NO3)2 and N2O
4. Cu(NO3)2 and NO2
Match the compounds given in Column I with the hybridization and shape given in Column II and mark the correct option.
Column I Column II
A) XeF6 1) Distorted octahedral
B) XeO3 2) Square planar
C) XeOF4 3) Pyramidal
D) XeF4 4) Square pyramidal
Match items of Column I with the items of Column II and assign the correct code.
Column I Column II
A) Cyanide process 1) Ultra pure Ge
B) Froth floatation Process 2) Dressing of ZnS
C) Electrolytic 3) Extraction of Al Reduction
D) Zone refining 4) Extracting of Au
5) Purification of Ni
1. A-2 B-3 C-1 D-5
2. A-1 B-2 C-3 D-4
3. A-3 B-4 C-5 D-1
4. A-4 B-2 C-3 D-1
Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7solution?
1. The solution is decolorized.
2. SO2 is reduced.
3. Green coloured Cr2(SO4)3 is formed.
4. The solution turns blue.
Which of the following characteristic features always holds true for the corresponding group of animals?
1. a
2. b
3. c
4. d
Which of the following is wrongly matched in the given table ?
1. a
2. b
3. c
4. d
Which of the following approaches does not give the defined action of contraceptive?
1. a
2. b
3. c
4. d
Which type of tissue correctly matched with its location?
1. a
2. b
3. c
4. d
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?
(a) Insulin | Glucagon |
(b) Aldosterone | Atrial natriuretic factor |
(c) Relaxin | Inhibin |
(d) Parathormone | Calcitonin |
1. a
2. b
3. c
4. d