Everyday Science MCQs

A. The amount of ozone layer is greater in the region close to the equator
B. Ozone acts as filter for uv radiations
C. In the equatorial region it acts as pollutant
D. Cfcs play effective role in removing o3 in the stratosphere

A. Alum
B. Nickel sulphate
C. Copper sulphate
D. Barium sulphate

A. Gibbs
B. Einstein
C. Sorenson
D. Chadwick

A. Very strong base
B. Very weak acid
C. Very strong acid
D. Very strong salt

A. Boron
B. Iron
C. Copper
D. Carbon

A. Pci5 = pci3 + cl2
B. N2 + 3h2 = 2nh
C. 2co + o2 = co2
D. N2 + o2 = 2no

A. Koh
B. Nh3
C. Ph3
D. Bf3

A. 0.0002m hci
B. 0.2 mole of naci with 0.2 mole of hno3
C. 0.4 mole of ch3cooh with 0.4 mole of naoh
D. 0.4 mole of nh3 with 0.2 mole of hci

A. Dynamic state
B. Static state
C. Free state
D. Unidirectional state

A. High
B. Low
C. According to kc
D. Constant