Chemistry (chemistry and industry 3) Quiz Answers

Chemistry (chemistry and industry 3) Quiz

Question Number 1

the final stage in TANNERY process is-

A. Soaking

B. Scudding

C. Crusting

D. Tanning

Question Number 2

KLINKER is NOT-

A. a hard substance used to make cement

B. produced in a kiln

C. formed before under going calcination

D. can be crushed and mix with separately crushed clay to form cement

Question Number 3

Question Number 4

Of the following Equations one DONOT show the cause to ozone deplation

A. O3+CFCl. -> CFClO+O2

B. O3 -> O2\ NO as a catalist\

C. NO + O2-> NO2\ UV RAY as a catalist\

D. CFCl2 -> CFCl. + Cl. \uv ray as a catalist\

Question Number 5

Question Number 6

boro silicate glass is(DO) NOT-

A. also called pyrex

B. formed when B2O3 is replaced with CaO

C. formed when CaO is replaced with B2O3

D. highly heat resistant

E. mainly contain SiO2