Question

MCQ' s :-
1). who was the first to propose that the first letter of the name of an element be used as it's symbol ?

a). Dalton
b). Mendeleev
c). Berzelius
d). Graham


2). Aluminium oxide reacts with sulphuric acid to produce :

a). aluminium sulphate and water
b). aluminium sulphate and hydrogen
c). aluminium sulphate and sulphur dioxide
d). none of these


3). Lead monoxide and lead dioxide may be represented as :

a). lead(II) oxide , Lead(IV) oxide
b). lead(I) oxide , lead(II) oxide
c). lead(II) oxide , lead(III) oxide
d). lead(I) oxide , lead(III) oxide


4). MCI is the formula of chloride of a metal a7M. The formula of sulphate of the metal is :

a). MSO4
b). M2SO4
c). M(SO4)2
d).M2(SO4)3


5). Symbols W and Ga stand for :

a). vanadium and gadolinium
b). tungsten and gallium
c). tungsten and gadolinium
d). vanadium and gallium​

Answer 1

"sulphate" (and any subsequent words) was ignored because we limit queries to 32 words.

Answer 2

Answer:

1) berzelius.

2)non of these.

3)lead (ll) oxide

4) MSO4.

5)vanadium and gadolinium