Which of the following is not a micronutrient for a plant?
A glass of water does not turn into ice as it reaches 0o C. It is because
Sometimes, indigestion is caused by the secretion of too much hydrochloric acid in the stomach. To ease the pain caused, a tablet can be taken that reacts to reduce the amount of acid present. Which one among the following would be inappropriate for a manufacturer to include as a major reactant in the tablet?
Which of the following pairs is/are correctly matched?
Select the correct answer using the code given below:
Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons (protons + neutrons). Two nuclides are isotones if they have the same number of neutrons, but different number of protons
Which one among the following is correct regarding 20Ne, 23Na+, 19F- and 24Mg2+?
During explosion of gunpowder, which of the following gases are evolved in the proportion of 1 : 3?
The metal constituent of chlorophyll is
The reaction that takes place in soap making is called saponification. Basically soap is sodium or potassium salts of
When a copper rod is dipped in aqueous silver nitrate solution, the colour of the solution changes to blue. This is because
The image formed by a convex mirror of a real object is larger than the object
( u – object distance, f – focal length )
Match List 1 with List 2 and select the correct answer using the code given below the lists :
All the elements in a group (family) have a common valency. For example, all the elements of the carbon family (carbon, silicon, germanium, tin and lead ) have common valency four. However, some of these elements can also have valency two. Which of the following can have valency two?
The major component used in preparation of different types of glasses is
The main constituent of vinegar is
The following seven (2) items consist of two statements, statement I and statement II. You are to examine these two statements carefully and select the answers to these items using the code given below:
Statement I :Water (H2O) is more polar than Hydrogen Sulphide (H2S).
Statement II :Oxygen is more electronegative than Sulphur.
When the winds blow from all sides to the central low in an anticlockwise direction, then this phenomenon is known as
The acid in gastric juice is
Which one among the following is not a chemical change?
The acid contained in vinegar is
A positively charged particle projected towards west is deflected towards north by a magnetic field. The direction of the magnetic field is
Metal used to make wires for safety fuses must have
Which of the following statements regarding the property of hard water is/are correct?
Select the correct answer using the code given below
Water is a good solvent. This is due to high
The bond which is present between water molecules is
Which one among the following is the chemical formula of gypsum which is an ingredient of cement?
The pure form of carbon is
Sodium stearate is a salt and is used
The principle of cleaning by soap is
Imagine a current carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is
Maxwell's Corkscrew Rule: Imagine a right-handed corkscrew being driven in such a way that it moves in the direction of the current flow. The direction of rotation of the handle then gives the direction of the magnetic field lines.
The motion of an electron in presence of a magnetic field is depicted in the figure.
Force acting on the electron will be directed