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Test on the topic: “Simple substances – nonmetals. Allotropy.”

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Test on the topic: “Simple substances – nonmetals. Allotropy.”
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1.Which nonmetal has a metallic luster?

1) sulfur

2) phosphorus

3) iodine

4) boron

2. Graphite and diamond are allotropic modifications of:

1) sulfur

2) phosphorus

3) carbon

4) boron

3.Ozone is:

1) an allotropic modification of oxygen

2) liquid at n.s.

3) noble gas

4) blue gas

4.Nonmetals can be in:

1) gaseous state

2) solid state

3) liquid state

4) in all of the above

5. Helium, unlike hydrogen, is:

1) gaseous

2) colorless

3) it is not combustible

4) lighter than hydrogen

6.A liquid at atm is:

1) fluorine

2) chlorine

3) iodine

4) bromine

7.Which solid is yellow, solid, and insoluble in water?

1) sulfur

2) bromine

3) carbon

4) phosphorus

8.Select the “extra”:

1) oxygen

2) nitrogen

3) iodine

4) hydrogen

9.In the Periodic Table, how many elements are nonmetals?

1) 92

2) 22

3) 23

4) 114

10.Noble gases are:

1) Group VIII A elements, one-atom molecules

2) Group VII A elements, one-atom molecules

3) Group VII A elements, two-atom molecules

4) Group VIII A elements, two-atom molecules

Answers:

1) 3;

2) 3;

3) 1;

4) 4;

5) 3;

6) 4;

7) 1;

8) 3;

9) 2;

10) 1;

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