Extremely strong structures are obtained by embedding steel bars or mesh in the body of concrete. This is called
Cement mortar
Concrete
Reinforced concrete
Quick setting
Which makes blue colour to the glass?
Cr(III)
Mn(IV)
Co(II)
Fe (III)
The mantle is composed of
silicates
carbonates
bicarbonates
chlorides
The alkaloid present in Nux vomica is
quinine
strychnine
atropine
aconite
The alkaloid present in the roots of ipecac is
emetine
Which are not biodegradable?
synthetic detergent
paper
biofertilizers
cotton
The stem of one is widely used as a home remedy for throat and digestive disorders?
Asafoetida
Penicillin
Rauwolfia
Arnica
Who discovered cement?
Carl scheel
Joseph Aspdin
Joseph Priestley
Rutherford
Which is used in treating allergic colds and other allergies particularly heavy fever?
antihistamines
anti-depressants
hormones
analgesics
A water based paint commonly used for painting indoor surfaces is
emulsion paints
acrylic emulsion
oil based paints
industrial paints
