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1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
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The pollution due to oxides of sulphur gets enhanced due to the presence of:

(a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide

Choose the most appropriate answer from the options given below:

A
(a), (d) only
B
(a), (b), (d) only
C
(b), (c), (d) only
D
(a), (c), (d) only
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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In the neutral or faintly alkaline medium, KMnO4 oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is form

A
+7 to +4
B
+6 to +4
C
+7 to +3
D
+6 to +5
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Tritium, a radioactive isotope of hydrogen, emits which of the the following particles?
A
Neutron (n)
B
Beta ($$\beta$$$$-$$)
C
Alpha ($$\alpha$$)
D
Gamma ($$\gamma$$)
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The method used to remove temporary hardness of water is :
A
Ion-exchange method
B
Synthetic resins method
C
Calgon’s method
D
Clark’s method
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