Among HCl, H2SO4 and CH3COOH, β¦β¦β¦β¦. is a weak acid.
Anonymous Quiz
12%
Ch3
28%
Hno3
51%
Ch3ooh
9%
None
π₯9π3π3π₯°2π2
Mixing an acid or base with water results in decrease in the concentration of per unit volume.
This process is called
This process is called
Anonymous Quiz
25%
H^+
33%
Oh^-
37%
Both
5%
None
π₯9π4β€2π2π₯°1
β¦β¦β¦. is one of the raw materials for the production of baking soda.
Anonymous Quiz
27%
Gypsm
45%
Nacl
18%
Hno3
10%
Hcl
π13π₯4π2π1π€1π1
The electronic configuration of three elements X, Y and Z are as follows:
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write
Anonymous Quiz
22%
Xy
48%
Yz
16%
Zx
14%
Allll
π9β€4π₯°3π3
The atomic number of an element βXβ is 12. Which inert gas is nearest to X?
Anonymous Quiz
20%
He
30%
Ar
46%
Ne
5%
Xe
π9π₯°5π3π2
The process in which a carbonate ore is heated strongly in the absence of air to convert it into metal oxide is called
Anonymous Quiz
25%
Roasting
42%
Reduction
16%
Smelting
17%
Calcination
π6π₯°4π3β€2π₯1π1
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
Anonymous Quiz
19%
Mg
57%
Na
14%
P
10%
Ca
π9π₯°6β€3π2π2
A non-metal which is a good conductor of electricity is β¦β¦β¦
Anonymous Quiz
56%
Graphite
19%
Diamond
9%
Sodium
16%
Copper
π14π10π8π₯2π€©2
The contraction and expansion movement of the walls of the food pipe is called:
Anonymous Quiz
19%
Translocation
62%
Perstalic movement
14%
Sieves
4%
None
π9β€4π2
The exit of unabsorbed food material is regu-lated by
Anonymous Quiz
39%
Anus sphincter
27%
Small intestine
30%
Large intestine
4%
None
π9β€2
Name the pores in a leaf through which respi-ratory exchange of gases takes place.
Anonymous Quiz
18%
Xyleam
21%
Vacuole
11%
Pholem
50%
Stomata
π10π₯7π₯°2
Which plant tissue transports water and min-erals from the roots to the leaf?
Anonymous Quiz
71%
Xyleam
17%
Pholem
8%
Parenchyma
4%
Collenchyma
π8π₯°5π₯2π2β€1π1π1
A blood vessel which pumps the blood from the heart to the entire body:
Anonymous Quiz
52%
Artery
26%
Capillaries
19%
Vein
2%
None
π17π10π₯°5