If Pallavi takes leaves on 17th and 18th of October and comes to office only on even number of days in October 20XX, then how many days she comes to office? (Assume that every Saturday and Sunday is holiday)
Study the given relationships carefully and select the option which correctly identifies P-S.
(i) Pistia : Hydrilla : : Wolffia : P
(ii) Pigeon : Ostrich : : Sparrow : Q
(iii) Chickenpox : Tetanus : : Mumps : R
(iv) Wildebeest : Snake : : Deer : S
Which of the following statements is/are correct?
(i) Longer line in the symbol for a cell represents its negative terminal.
(ii) The combination of two or more batteries is called a cell.
(iii) Fuse wire is made up of alloys which has high melting point.
(iv) Electromagnet loses its magnetism when the current flowing through it is switched off.
B(ii) and (iii) only
C(i), (ii) and (iv) only
D(i), (ii), (iii) and (iv)
Rita has gone to Antarctica on a science trip. Select the option which on unscrambling gives name of a clothing that she can wear over there.
The answer is C because A is Shorts, B is Skirt, C is Sweater and D is Raincoat . She will wear a Sweater in Antarctica
Rachit added a teaspoonful of vinegar and a pinch of
baking soda in a test tube. He heard a hissing sound
and saw bubbles of a gas coming out. He passed this
gas through lime water. Which of the following is
incorrect about his experiment?
A Lime water turns milky.
B The gas evolved was carbon dioxide.
C Sodium hydrogencarbonate is formed which makes lime water milky.
D Both b and c
Answer is c