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mnsoomro
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Barite is an ore of
Ca Mg Ba K Submitted by :- Muhammad Nawaz
sylvite is an ore of
Ca Mg Ba K Submitted by :- Muhammad Nawaz
Lime water is an aqueous solution of ______ .
MgSO3 Ca(OH)2 CaCO3 CaSO4 Submitted by :- Muhammad Nawaz
Ketones are comparatively less reactive than aldehdye. It is due to_______________?
A alkyl groups are electron donating B. steric hindrance C. Both A and B D. none Submitted by :- Jamil…
Which of the following do not give aldol condensation reactions
A. formaldehyde B. acetaldehyde C. diemthyl ketone D. propionaldehyde Submitted by :- Jamil Ahmed
Which of the mentioned elements with excess oxygen to form peroxides?
Ca Mg Li Ba Submitted by :- Muhammad Nawaz
When calcium is heated in the flame of a Bunsen burner, the color imparted to the flame is
Golden yellow Brick red Crimson red Grassy green Submitted by :- Muhammad Nawaz
The most common oxidation state of alkaline earth metals is
+ 1 +2 -2 -1 Submitted by :- Muhammad Nawaz
The wire of flash bulb is made up of
Cu Ag Mg Ba Submitted by :- Muhammad Nawaz
The formula of bleaching powder is
CaOCl2 CaClO3 Ca(ClO3)2 CaOCl Submitted by :- Muhammad Nawaz