4066: Which one of the following statements is not correct?
(a) Milk contains none of the B-vitamins
(b) Vitamin-A (retinal) deficiency leads to dry and scaly skin
(c) One of the symptoms of scurvy is pain in the joints
(d) Vitamin B1 (thiamine) deficiency can lead to heart failure
4067: Chlorination is a process used for water-purification. The disinfecting action of chlorine is mainly due to
(a) The formation of hydrochloric acid when chlorine is added to, water
(b) The formation of hypochlorous acid when chlorine is added to water
(c) The formation of nascent oxygen when chlorine is added to water
(d) The formation of hydrogen when chlorine is added to water
4068: Azolla gives a good biofertilizer when mixed with:
(a) Blue-green algae
(b) Cow dung
(c) Bone-meal
(d) Urea
4069: Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I (Person) List-II (Area)
A. K.P.Singh 1.Banking
B. Vikram Pandit 2.Fiction writing
C. Roopa Farooki 3. Retail business
D. Kishore Biyani 4. Real estate
(a) 3 1 2 4
(b) 4 1 2 3
(c) 4 2 3 1
(d) 3 2 1 4
4070: Acceleration due to gravity on moon is 0.166 times than that on the earth. A man weighing 60 kg on earth would weigh _______ kg on moon.
(a) 16.6 kg
(b) 30 kg
(c) 60 kg
(d) 10 kg