Which of the following processes represents a neutralisation reaction?
A Applying vinegar on wasp sting
B Brushing our teeth with toothpaste
C Sodium hydroxide reacts with hydrochloric acid to form sodium chloride.
D All of these
How is option A neutralisation??????
Study the series carefully :
S k 6 £ Q 2 R ∗ C F 8 E $ G 2 # 4 9 L N 3 U V 5 Y ∝ B 7 W 9
S K £ is related to 9 W B in the same way Q 2 ∗ is related to
A∝ V U
B∝ Y 5
C7 B Y
D∝ Y V
Refer to the given figures of types
of teeth (P, Q, R and S) in human beings.
Select the correct option regarding them.
AS is used in tearing of food while P is used in cutting or biting of food.
BQ is total 8 in number while R is total 12 in number in human jaws.
CR type of teeth is absent in milk teeth and it appears in second set of teeth i.e., permanent teeth.
DP is total 2 in number while S is total 4 in number.
Which of the following characteristics is/are shared by the animals shown in the given figures?
(i) They lay eggs.
(ii) They eat same type of food.
(iii) They grow and eventually die.
(iv) They live both on land and in water.
(a) (i) & (iii)
(b) (i), (ii) & (iii)
(c) (i), (iii) & (iv)
(d) (iii) only
Select the correct option in reference to the given word chop table.
A Natural satellite of Earth – 6, 1
B Hottest planet of our Solar System – 4, 12, 7
C Smallest planet of our Solar System – 2, 3
D Largest planet of our Solar System – 8, 10, 15
Bcd are correct
Select the correct option regarding properties of solid, liquid and gas.
|B||Fixed volume||Fixed volume||Variable volume|
|C||Fixed shape||Fixed shape||Variable shape|
|D||Variable mass||Fixed mass||Fixed mass|
solids and liquids have fixed volume , so the answer is B