1926: Consider the following statements:

1. Anhydrous sodium carbonate is commonly known as baking soda.

2. Baking soda is used in fire extinguishers.

3. Bleaching power is manufactured in Hasenclever plant.

Which of the following statements given above is/are correct?

(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3
1927: During Aurangzeb's reign, which of the following were not included in his government?

(a) Rajputs

(b) Pathans

(c) Marathas

(d) All of these
1928: The normal temperature of human body on the Kelvin scale is

(a) 280

(b) 290

(c) 300

(d) 310
1929: "Reserprine" derived from the plant "Serpentina" is used to:

(a) Alleviate pains

(b) Alleviate high blood pressure

(c) Alleviate low blood pressure

(d) Cure rickets
1930: Consider the following statements :

1. Aadhaar card can be used as a proof of citizenship or domicile.
2. Once issued, Aadhaar number cannot be deactivated or omitted by the Issuing Authority.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2