Options:
- A. two
- B. three
- C. one
- D. four
View Answer
C. one
Chemistry
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?
Options:
- A. Mother liquor
- B. Filterate
- C. Extract
- D. Molasses
View Answer
D. Molasses
Special features of borate glass is that it is_________________?
Options:
- A. Heat resistant
- B. Low melting
- C. Used to prepare chemical garden
- D. Green in colour
View Answer
A. Heat resistant
Which of the following shows inert pair effect ?
Options:
- A. boron
- B. carbon
- C. silicon
- D. tin
View Answer
D. tin
Acetic anhydride can be obtained by treating ethyl alcohol with___________________?
Options:
- A. P2O5
- B. H2SO4
- C. Both A and B
- D. PCI5
View Answer
C. Both A and B
The composition of brown ring in nitrate test is_________________?
Options:
- A. FeSO4.No
- B. FeSO4.No2
- C. FeSO4.No3
- D. FeSO4.N2o
View Answer
A. FeSO4.No
Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?
Options:
- A. Displacement reaction
- B. Double displacement reaction
- C. Disproportionation reaction
- D. Reduction reaction
View Answer
C. Disproportionation reaction
Which of the halogen has highest electronegativity ?
Options:
- A. Fluorine
- B. Chlorine
- C. Bromine
- D. Iodine
View Answer
A. Fluorine
Alkenes are produced from dehalogenation of________________?
Options:
- A. dihalo alkane
- B. trihalo alkane
- C. vicinal dihalo alkane
- D. vicinal trihalo alkane
View Answer
C. vicinal dihalo alkane
Reactivity due to pi-electrons is present in_________________?
Options:
- A. alkane
- B. alkene
- C. alkyne
- D. both B & C
View Answer
D. both B & C