Read and download free pdf of CBSE Class 10 Chemistry Acids Bases And Salts Worksheet Set E. Download printable Science Class 10 Worksheets in pdf format, CBSE Class 10 Science Chapter 2 Acids Bases Salts Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 10 Assignments and practice them daily to get better marks in tests and exams for Class 10. Free chapter wise worksheets with answers have been designed by Class 10 teachers as per latest examination pattern
Chapter 2 Acids Bases Salts Science Worksheet for Class 10
Class 10 Science students should refer to the following printable worksheet in Pdf in Class 10. This test paper with questions and solutions for Class 10 Science will be very useful for tests and exams and help you to score better marks
Class 10 Science Chapter 2 Acids Bases Salts Worksheet Pdf
Assertion and Reason Type MCQs :
Following questions consists of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
A. Both assertion and reason are true, and reason is the correct explanation of assertion.
B. Both assertion and reason are true, but reason is not the correct explanation of assertion.
C. Assertion is true but reason is false.
D. Assertion is false and reason is true.\
Question. Assertion (A): The HCl gas shows acidic behaviour in the water.
Reason(R): The pH of dry HCl gas is 1.5.
Answer: C
Question. Assertion: NaOH reacts with zinc metal and produces hydrogen gas.
Reason: Acids react with active metals to produce hydrogen gas.
Answer: B
Question. Assertion(A): Washing soda is a chemical compound that can be used to remove stubborn stains from laundry
Reason(R):The sodium carbonate in washing soda "softens" water.
Answer: B
Question. Assertion (A): Phenolphthalein is a synthetic acid-base indicator.
Reason(R): Phenolphthalein does not give any colour with acids but gives pink colour with bases.
Answer: A
Question. Assertion(A): Baking powder is used in making cake instead of using only baking soda.
Reason(R) : Baking powder contains Tartaric acid which reacts with sodium carbonate and removes bitter taste.
Answer: C
Question. Assertion (A): Honey bee-sting injects an acid in the skin which causes pain and irritation.
Reason (R): Use of mild base like baking soda on the stung area gives relief.
Answer: B
Question. Assertion (A): The organic compounds such as C6H12O6 and C2H5OH contain hydrogen but they do not conduct electricity in the water.
Reason(R): Acids produce H3O+ ions in the solutions.
Answer: B
Question. Assertion(A): Soda-acid fire extinguisher contains sodium hydrogen carbonate and sulphuric acid.
Reason(R): Sulphuric acid mixes with sodium hydrogen carbonate solution and produces a lot of CO2 gas, which forms a blanket over fire and cuts it off from the supply of the air to the burning substance and the fire stops.
Answer: A
Question. Assertion (A): The acid must always be added to water with constant stirring.
Reason(R): Mixing of an acid with water decreases the conc. of H+ ions per unit volume.
Answer: B
CASE BASED MCQs
I. Bleaching powder is a pale yellowish powder. It is soluble in water but due to the presence of impurities, we never observe a clear solution. Its chemical formula is Ca(OCl2) with its chemical name as Calcium hypochlorite. Bleaching powder is also called calcium chlorohypochlorite because it is considered as a mixed salt of hydrochloric acid and hypochlorous acid.
Question. One of the following cannot be considered as the use of bleaching powder
A. It is an oxidising agent.
B. it is used for disinfecting water.
C. it bleaches cotton and linen in the textile industry.
D.. it releases Oxygen gas on heating which can be used for aeration of water bodies.
Answer: D
Question. The compound lime water that is used in the manufacture of bleaching powder is
A.Clear solution of Ca(OH)2.
B.Milky Suspension of Ca(OH)2.
C.Clear solution of CaCl2.
D.Clear solution of CaCO3.
Answer: A
Question. One of the products obtained during the electrolysis of aqueous Sodium Chloride(brine) used in the preparation of Bleaching powder is.
A. Sodium metal at cathode
B.Hydrogen gas
C. Chlorine gas
D. Slaked lime.
Answer: C
II. Water of crystallisation is the fixed number of water molecules present in one formula unit of a salt. water(s) of crystallization or water(s) of hydration are water molecules that are present inside crystals. Water is often incorporated in the formation of crystals from aqueous solutions. A salt with associated water of crystallization is known as a hydrate.
Question. The temperature at which Gypsum (CaSO4 . 2H2O) into Plaster of Paris(CaSO4.1/2 H2O
A.373 K
B.273 K
C.374 K
D.375 K
Answer: A
Question. The formula of Plaster of Paris is CaSO4. ½ H2O, it is to be noted that half water molecule is shown to be attached as water of crystallisation. This indicates that
A. Only half water molecule is present in Calcium Sulphate crystal
B. Two formula units of Calcium Sulphate share one molecule of water.
C. Two formula units of calcium Sulphate share two molecules of water
D. Two formula units of Calcium Sulphate share one and a half molecules of water.
Answer: B
Question. Which of the following salt does not contain water of crystallisation?
A. Blue Vitriol
B.Baking Soda
C.Washing Soda
D.Gypsum.
Answer: B
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Chapter 2 Acids Bases Salts CBSE Class 10 Science Worksheet
The above practice worksheet for Chapter 2 Acids Bases Salts has been designed as per the current syllabus for Class 10 Science released by CBSE. Students studying in Class 10 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 10 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 10 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 10 Science to develop the Science Class 10 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 10 Science designed by our teachers. After solving these you should also refer to Class 10 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 10 Science which you can use to further make yourself better in Science.
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