Which of the following oxides shows electrical properties like metals
a. SiO2
B. MgO
c. SO2 (s)
d. CrO2
Ans. d
Explanation : CrO2 , TiO and ReO are some typical metal oxides which show electrical conductivity similar to metal. Which SiO2 , MgO and SO2are oxides of metal. semimetal and non- metal which do not show electrical properties
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dm-3 sucrose solution at 20 ° C (molar gas constant, R = 8.314 JK -1 mol -1 ; 1 dm-3 = 0.001 m3 ) a. 4870 Pa b. 4.87 Pa c. 0.00487 Pa d. 0.33 Pa Ans. a (17)
