A. A1
B. Si
C. B
D. C
Related Mcqs:
- Which of the following is mineral fiber ?
A. Teflon
B. asbestos
C. saran
D. acrylic - The coloured glassy mass in borax bead test is due to the formation of___________________?
A. metal borate
B. metal meta borate
C. metal boride
D. metal silicate - H2 gas in SHE is filled at pressure of___________________?
A. 760mm of Hg
B. 750mm of Hg
C. 780mm of Hg
D. 800mm of Hg - In the production of wrought iron Mg Si and P are removed in the form of___________________?
A. oxides
B. silicates
C. slag
D. carbonates - Carbohydrates are polyhydroxy compounds of___________________?
A. Glucose
B. Glyceraldehydes
C. Oligosaccharides
D. Aldehydes and ketones - Rate of enzymatic reaction is directly proportional to the concentration of___________________?
A. Enzyme
B. Substrate
C. Enzyme and substrate
D. Enzyme and product - Among halogens the highest boiling point is of___________________?
A. Flrorine
B. Chlorine
C. Bromine
D. Iodine - Clemmensens reduction infolves the reduction of___________________?
A. ketone
B. aldehyde
C. alkane
D. all of the above - If temperature of gallium arsenide is increased then its conductivity will___________________?
A. decrease
B. increase
C. remains constant
D. first decreases then increases - Which element can form tripositive ion ?
A. Beryllium
B. Carbon
C. Silicon
D. Aluminium