Đề Khảo Sát Chất Lượng HSG Môn KHTN

Đề Khảo Sát Chất Lượng HSG Môn KHTN

2nd Grade

63 Qs

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Đề Khảo Sát Chất Lượng HSG Môn KHTN

Đề Khảo Sát Chất Lượng HSG Môn KHTN

Assessment

Quiz

Science

2nd Grade

Medium

Created by

Phô Mai

Used 2+ times

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63 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the carbon content in the alloy called steel?

From 2% to 6%

Below 2%

From 2% to 5%

Above 6%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which pair of substances does not react?

ZnSO4 and Mg

CuSO4 and Ag

CuCl2 and Al

CuSO4 and Fe

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To produce metals Na, Mg, Ca in industry, which method is used?

Electrolysis of saturated chloride salt solution with a partition.

Using H2 or CO to reduce the corresponding metal oxide at high temperature.

Using metal K to react with the corresponding chloride salt solution.

Electrolysis of molten corresponding chloride salt.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The order of reactivity of metals X, Y, Z, T is as follows:

T, Z, X, Y

Z, T, X, Y

Y, X, T, Z

Z, T, Y, X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When CO gas is passed into a heated tube containing a mixture X of Al2O3, MgO, Fe3O4, CuO, what is the residue Y?

MgO, Fe3O4, Cu.

MgO, Fe, Cu.

Mg, Fe, Cu.

Mg, Al, Fe, Cu.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is iron Fe directly produced from Fe2O3?

Hydraulic method

Electrolysis of solution.

Thermal method

Electrolysis of molten.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is correct?

The melting point of metal W is lower than that of metal Al.

Metal Fe conducts electricity better than metal Ag.

Metal K is less hard than metal Cr.

Metal Fe does not react with concentrated hot H2SO4 solution.

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