10th Science Qz (Chemical reactions, acid-base & metal-nonmetal)
Authored by Navneet Chandak
Science
9th - 12th Grade
Used 8+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Sour taste of lemon is due to which acid
Oxalic acid
Citric acid
Acetic acid
HCl
2.
FILL IN THE BLANKS QUESTION
1 min • 2 pts
Gypsum on heating to 373K is converted into (a)
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Name the type of reaction going on
Combination
Neutralization
Displacement
Decomposition
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
thermite reaction is used for which purpose
to weld broken pieces of iron
applying layering of zinc on iron
photography
making bleaching powder
5.
FILL IN THE BLANKS QUESTION
1 min • 2 pts
A solution having pH 4 turns .............. litmus to............ .
(a)
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Melting point of gallium and cesium is ......
very high
very low
low to high
none of above
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
A very reactive metal, kept in kerosene oil, reacts with water and libearted hydrogen catches fire. Identify
Iron
Gold
Aluminium
Sodium
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