The number of electrons in the outermost shell of alkali metals is _____.
Anonymous Quiz
51%
1
26%
2
11%
3
11%
7
In which block of the modern periodic table are the non metals found?
Anonymous Quiz
15%
s-block
57%
p-block
21%
d-block
7%
f-block
Halogens belongs to _____ group in the modern periodic table.
Anonymous Quiz
13%
15
19%
16
50%
17
18%
18
The reaction of iron nail with copper sulphate solution is _____ reaction. (ssc March 2019 board)
Anonymous Quiz
28%
Double displacement
51%
Displacement
14%
Combination
8%
Decomposition
Carbon dioxide ______.
Anonymous Quiz
37%
Turns lime water milky
6%
Is odourless
10%
Is colourless
46%
All the three A B and C are correct
Which of the following are energy foods?
Anonymous Quiz
61%
Carbohydrates and fats
19%
Proteins and mineral salts
18%
Vitamins and minerals
3%
Water and roughage
The site of photosynthesis in the cells of a leaf is
Anonymous Quiz
70%
chloroplast
14%
mitochondria
13%
cytoplasm
3%
protoplasm
The number of pairs of sex chromosomes in the zygote of a human being is
Anonymous Quiz
62%
2
10%
3
22%
1
6%
4
The most abundant metal in the earth's crust is
Anonymous Quiz
46%
Iron
36%
Aluminium
9%
Calcium
9%
Sodium
The poorest conductor of heat among metals is
Anonymous Quiz
33%
Lead
37%
Mercury
17%
Calcium
13%
Sodium
In the Space Station the value of 'g' is only ______less than its value on the surface of Earth.
Anonymous Quiz
61%
10%
23%
11%
12%
12%
3%
13%
________ Predicted the existence of gravitational waves in 1916.
Anonymous Quiz
52%
Newton
18%
Einstein
18%
Galileo
12%
Kepler
The number of electrons in the outermost shell of alkali metals is _________.
Anonymous Quiz
56%
1
23%
2
11%
3
10%
7
When sodium hydroxide reacts with sulphuric acid _________.
Anonymous Quiz
41%
Hydrogen gas is liberated.
15%
Sodium bisulphate if formed.
18%
Sodium sulphate is formed.
27%
Sodium sulphate and water are formed.