Chemistry - MOST IMPORTANT DFCCIL MTS Previous Year Questions
Practice real questions from previous year exams of DFCCIL MTS.
In the preparation of baking soda, which of the following chemicals reacts with sodium chloride?
Select the option that is true regarding the following two statements labelled Assertion and Reason.
Assertion: The chemical properties of CH3OH, C2H5OH, C3H7OH and C4H9OH are all very similar.
Reason: CH3OH, C2H5OH, C3H7OH and C4H9OH are members of homologous series.
Which of the following is NOT a characteristic of a suspension?
What is the common name of ethanoic acid and what is its 5-8% solution in water called?
Which of the following substances is used to extract litmus solution for an acid-base indicator?
Consider the statements about neutralisation reactions given below.
(I) When a strong acid reacts with a strong base, the reaction always produces a salt and water, resulting in a solution with a pH of 7.
(II) When a weak acid reacts with a strong base, the reaction is still called a neutralisation reaction, but the resulting solution is not neutral (pH ≠ 7).
Which of the given statements is/are correct?
Which of the following statements is/are true for bleaching powder?
i. Bleaching powder is represented as CaOCl2.
ii. Bleaching powder is used to make drinking water free from germs.
Methane is widely used as a fuel and is a major component of:
Which of the following options correctly classifies the cyclic carbon compounds C6H6 and C6H12 as saturated or unsaturated?
Which one of the following substances, when added to water, will not change the pH?
Identify a redox reaction.
What will be the atomic number of an element X which is placed in period 2 and group 17?
How many elements were known when Mendeleev started his work?
Which block elements are less electropositive in modern periodic table ?
Identify the element that is NOT a metalloid.