Isotopes of an element have the same number of __?
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✅ Correct answer: A. Protons
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Bleaching action of chlorine is by___?
✅ B. Oxidation
One of these scientists formulated basic laws of Geometry?
✅ B. Pythagorus
How many hearts an Octopus has?
✅ D. 3
The property by virtue of which metals can be beaten into thin sheets is known as?
✅
“Elephant” large unit of paper measurement equal to 28 by_____
✅ B. 23 inches
Red blood cells are produced in____?
✅ D. Bone-marrow
In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?
✅ D. Fusion nuclear reaction
The deficiency of vitamin K causes ___ ?
✅ D. Blood clotting disorder
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