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๐5๐1
non-metal used to preserve food material is:
Anonymous Quiz
19%
Carbon
20%
Phosphorous
11%
Sulphur
50%
Nitrogen
๐7๐ฅ3โค1
pH value less than 7 indicates that the solution is โ
Anonymous Quiz
60%
Acidic
21%
Basic
16%
Neutral
3%
None
๐13๐ฅ4๐ฅฐ1๐1
๐10โค3๐ฅฐ3๐2
An aqueous solution turns the red litmus solution blue. Excess addition of which of the following solutions would reverse the change?
Anonymous Quiz
31%
Hcl
32%
Lime
28%
H2so4
8%
None
๐16๐คฉ5๐1๐ฅฐ1
At what temperature is gypsum heated to form Plaster of Paris?
Anonymous Quiz
13%
35
19%
70
15%
90
53%
100
๐13๐1
Which of the following salts does not contain water of crystallization?
Anonymous Quiz
24%
Blue vitrol
32%
Baking soda
16%
Washing soda
28%
Gypsm
๐ฅฐ8๐4โค3
At what temperature is gypsum heated to form Plaster of Paris?
Anonymous Quiz
9%
35
16%
70
16%
90
59%
100
๐9๐คฉ2
Sodium carbonate reacts with hydrochloric acid produces
Anonymous Quiz
57%
Nacl
11%
H2o
8%
Co2
24%
All
๐11๐ฅ3๐ฅฐ3
Which of the following is a contraceptive?
Anonymous Quiz
27%
Copper -T
20%
Diphgram
17%
Condom
36%
All
๐21๐10๐1
A population of thermophilic archaebacteria are generally found in hot springs. Any change to the temperature of the If the temperature of hot springs gets reduced, change in which component can allow survival of few members of these archaebacteria
Anonymous Quiz
31%
Cell wall
36%
Ribosome
20%
Dna
13%
Cytoplasm
๐10๐ฅ6๐4๐ค2๐ฅฐ1