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,
Anonymous Quiz
24%
Xy
55%
Yz
14%
Zx
7%
None
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Which of the following non-metal is lustrous?
Anonymous Quiz
24%
Sulphur
19%
Oxygen
15%
Nitrogen
43%
Iodine
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The site of photosynthesis in the cells of a leaf is
Anonymous Quiz
72%
Chloroplast
20%
Mitochondria
6%
Lysosome
1%
None
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Which region of the alimentary canal absorbs the digested food?
Anonymous Quiz
57%
Small intestine
23%
Large intended
19%
Pancreas
2%
None
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The exit of unabsorbed food material is regu-lated by
Anonymous Quiz
20%
Liver
49%
Anus
28%
Anal spincthuer
3%
None
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. Which one of the following salts does not con-tain water of crystallisation?
Anonymous Quiz
26%
Blue vitrol
39%
Baking soda
15%
Washing soda
21%
Gypsum
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Tomato is a natural source of which acid?
Anonymous Quiz
17%
Acetic acid
25%
Citric acid
33%
Tartaric acid
25%
Oxalic acid
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At what temperature is gypsum heated to form Plaster of Paris?
Anonymous Quiz
13%
90
62%
100
20%
101
5%
010
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How many water molecules does hydrated cal-cium sulphate contain?
Anonymous Quiz
17%
5
36%
10
20%
7
26%
2
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Sodium hydroxide turns phenolphthalein solution
Anonymous Quiz
45%
Pink
21%
Yellow
29%
Colourless
4%
Orange
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