1.
A mineral is known as ore if metal
2.
Most abundant metal on the surface of earth is
3.
The lustre of a metal is due to
4.
In the thermite process the reducing agent is
5.
Metal always found in free state is
7.
Metals do not react with base because
8.
During anodising aluminium is used as
9.
Number of cations present in NH4Cl is
10.
Total no of electrons present in Chlorine ion is
11.
On corrosion silver is turned
12.
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
A. Good thermal conductivity
B. Good electrical conductivity
C. Ductility
D. High melting point
13.
Metals can float with hydrogen bubbles on the water
16.
Composition of aqua regia is 3:1
17.
Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?
18.
The electronic configurations of three elements X, Y and Z are
X-2,8 y-2,8,2 z-2,8,2 which of the following is correct?
19.
X is a compound which is reacting with Zn, HCl and CH3COOH too.
20.
Which metal is present in the nature in native state?
21.
Which of the following four metals would be displaced from the solution of its salts by other three metals?
22.
Which of the metal is amphoteric oxide?
23.
Distribution of electron in silicon
24.
Which of the element is having distribution of electrons like 2,8.8
25.
Hydrogen is metal as it is
26.
Two elements X and Y are forming oxide, after dissolving in water X changes red litmus into blue and Y vice versa
28.
The most malleable metal is
30.
The compound containing both ionic and covalent bond is
31.
Non metals do not displace hydrogen from acids because
32.
To reduce rust iron is mixed with
33.
During electro plating the metal has to be electro plated used as
34.
Which is the correct reaction?
35.
Transfer of one or more electrons from an element to other in case of
36.
Example of polar solvent is
38.
The metal is known as strategic metal
39.
Which of the following metal will have very low melting point?
41.
Which of the following pair of reactants will give displacement reactions?
42.
The atomic number of four elements A, B, C and D are 6,8,10 and 12 respectively. The two elements which can react to form ionic compounds are
