The most abundant metal in the earth’s crust is
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36%
Iron
46%
Aluminium
8%
Calcium
10%
Sodium
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The electronic configuration of three elements X, Y and Z are as follows:
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,
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17%
Xy
59%
Yz
17%
Zx
7%
None
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The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
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18%
He
30%
Ar
47%
Ne
4%
Xe
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An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the followingAn element X is soft and Identify the element from the following
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20%
Mg
64%
Na
11%
P
5%
Ca
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Roots of the plants absorb water from the soil through the process
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12%
Diffusion
52%
Transportation
32%
Osmosis
4%
None
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In amoeba, food is digested in the:
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35%
Food vacoule
29%
Vaccoule
28%
Mitochondria
8%
Lysosome
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Which region of the alimentary canal absorbs the digested food?
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21%
Stomach
61%
Small intestine
17%
Large intestine
2%
None
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The exit of unabsorbed food material is regu-lated by
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18%
Lysosome
24%
Small intestine
35%
Anul spincthuer
23%
Anus
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