During the science activity, class teacher arranged the test tubes as shown in the figure and asked students to predict the effect of various indicators on the given solutions.
Which of the following statements are correct?
I. Turmeric solution will turn red in test tubes 1 and 4.
II. Methyl orange will turn yellow in test tubes 1 and 3.
III. China rose indicator will turn dark pink in test tube 2.
IV. Blue litmus solution will turn red in test tubes 1 and 4.
AI and IV only
BI, II and IV only
CII and III only
DNone of these
Padma conducted an experiment as shown below by using different materials.
Padma pulled on the spring balance until the material was separated from the magnet. The readings on the spring balance were recorded as shown in the table below.
What conclusions could Padma make from her experiment?
(i) Soft iron needs the largest force in order to be separated from a magnet.
(ii) Nickel is most easily magnetised while soft iron is least easily magnetised.
(iii) Nickel and cobalt are non-magnetic materials.
(iv) Steel makes the strongest permanent magnet.
B(iii) and (iv) only
C(i), (ii) and (iii) only
A is the correct answer
The nearest planet to the Earth is
Until recently, it was believed that the answer to this question should be A, that is, Venus. However, recent times have proven, through the use of advanced mathematics and simulations, that in fact, Mercury is the closest planet to the Earth.
Read the given paragraph, where few words have been italicised.
The pineal gland secretes a hormone progesterone which helps to regulate sleep pattern. Thyroid glands release hormone which regulate the level of calcium in the blood with the help of calcitonin which is produced in the parathyroid glands.
Select the correct option regarding the given paragraph.
(i) Positions of pineal and parathyroid should be interchanged.
(ii) Progesterone should be replaced by melatonin.
(iii) Parathyroid should not be replaced as it is correctly mentioned.
(iv) Positions of progesterone and calcitonin should be interchanged.
(v) Positions of thyroid and parathyroid should be interchanged.
A (ii) and (v) only
B (i), (ii) and (v) only
C (i) and (iii) only
D (ii) and (iv) only
Refer to the given conversation among three friends and select the correct option regarding
ABoth Sakshi and Monika are correct.
BBoth Paras and Monika are correct.
CBoth Monika and Paras are incorrect.
DBoth Sakshi and Paras are incorrect.
Why paras is correct?
Read the given paragraph.
Anisha is making snowman with her friends in her backyard whereas Kavish is beating the heat by eating ice-cream.
Identify the places where Anisha and Kavish dwell and the weather they are experiencing and select the correct statement regarding this.
AAnisha might be wearing clothes sourced from the fruit of a plant.
BThe area where Anisha lives, receives precipitation in the form of solid state of water.
CKavish is experiencing the season when we wear clothes made of wool.
DFloods are of common occurrence at the place where Anisha lives.
Why A is the correct answer?