Generally metals react with acids to give salt and hydrogen gas. Which of the following acids doesn't give hydrogen gas on reacting with metals.
Anonymous Quiz
28%
H2SO3
29%
HCL
20%
H2SO4
24%
HNO3
Metals are solid in nature which one of the following metal is found in liquid state at room temperature?
Anonymous Quiz
19%
Na
16%
Fe
51%
Hg
13%
Cr
Food cans are coated with tin not with zinc because?
Anonymous Quiz
20%
Zinc is costlier
23%
Zinc has high M.P
46%
Zn is more reactive
12%
None of above
Although metals forms basic oxides, which of the following metals form an amphoteric oxide?
Anonymous Quiz
42%
Al
22%
Ca
23%
Mg
12%
Fe
Which of the following oxide’s of iron can be obtained on prolonged reaction of iron with steam?
Anonymous Quiz
28%
Fe3O4
18%
FeO
25%
Fe2O3
30%
Fe3O4 and Fe2O3
When copper oxide reacts with hydrochloric acid,
Anonymous Quiz
33%
Neutralization Reaction
25%
Double Displacement
35%
Both A and B
7%
None of above
👍1
On brining moist blue litmus paper near nitrogen dioxide gas,
Anonymous Quiz
45%
Blue litmus turns Red
27%
Red litmus turns Blue
18%
No Change
10%
Mujhe nahi ata
Where is heart Located?
Anonymous Poll
53%
Thoracic Cavity
27%
Abdominal cavity
20%
Below Diaphragm
10%
None
Which gland in the human body is responsible for initial digestion of
starch?
starch?
Anonymous Poll
21%
Gastric Glands
60%
Salivary Glands
14%
Liver
16%
Pancreas
4%
None
________ is a group of compounds of glucose, starch and glycogen providing energy to the body.
Anonymous Poll
73%
Carbohydrates
21%
Proteins
15%
Vitamins
10%
Minerals
6%
None
______ provides instant energy supply to body.
Anonymous Poll
9%
Minerals
15%
Protein
51%
Glucose
37%
All of the above
________, _________ and ______ supplies energy to the body.
Anonymous Poll
24%
Wheat, rice, pulse
11%
wheat, rice and corn
11%
Beat root, wheat, maize
64%
All of the above
4%
None
👍1🔥1
For doing any activity, energy is provided by ________.
Anonymous Poll
77%
Nutrition
8%
excretion
12%
Absorption
14%
Circulation
Which Organism depends on other plants and animals for nutrition?
Anonymous Poll
11%
Autotrophs
75%
Heterotrophs
17%
Both A and B
5%
None of above
what do you mean by Autotrophic mode of nutrition?
Anonymous Poll
80%
Self production
11%
Other nutrition
13%
Self transportation
4%
None
Two types of mode of nutrition are_____.
Anonymous Poll
13%
Herbivore and Omnivore
11%
Heterotrophic and Herbivore
6%
Herbivore
77%
Heterotrophic and Autotrophic
6%
None
By which process plants make their own food ?
Anonymous Poll
7%
Translation
7%
Transpiration
85%
Photosynthesis
9%
Both A and C