Match The Columns/pair. - Science STD 8 Questions - Vidyadip

Questions

Match The Columns/pair.

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4 questions · self-marked practice — reveal the answer and mark yourself.

Question 15 Marks

Column I	Column II
1. Alpha particles	a. Inert element
2. Uranium-235	b. Negatively charged particles
3. Helium	c. Positively charged particles
4. Isotopes	d. Krypton – 92, Barium 141
	e. U-233, Th-232
	f. ${ }^{12} C ,{ }^{13} C { }^{14} C$

Answer

Column I	Column II
1. Alpha particles	c. Positively charged particles
2. Uranium-235	d. Krypton – 92, Barium 141
3. Helium	a. Inert element
4. Isotopes	f. ${ }^{12} C _r{ }^{13} C _r{ }^{14} C$

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Question 25 Marks

Column I	Column II
1. Atom	a. Treatment of goitre
2. Isotopes of iodine	b. Protons + Neutrons
3. Atomic mass number	c. Different number of neutrons
4. Isotopes	d. Electrically neutral

Answer

Column I	Column II
1. Atom	d. Electrically neutral
2. Isotopes of iodine	a. Treatment of goitre
3. Atomic mass number	b. Protons + Neutrons
4. Isotopes	c. Different number of neutrons

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Question 35 Marks

Column I	Column II
1. Thomson	a. Well defined orbits
2. Rutherford	b. Neutron
3. Chadwick	c. Scattering experiment
4. Bohr	d. Electron

Answer

Column I	Column II
1. Thomson	d. Electron
2. Rutherford	c. Scattering experiment
3. Chadwick	b. Neutron
4. Bohr	a. Well defined orbits

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Question 45 Marks

Column I	Column II
1. Proton	a. Negatively charged
2. Electron	b. Neutral
3. Neutron	c. Positively charged

Answer

Column I	Column II
1. Proton	c. Positively charged
2. Electron	a. Negatively charged
3. Neutron	b. Neutral

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Match The Columns/pair. - Science STD 8 Questions - Vidyadip