{"id":6061,"date":"2023-11-04T06:36:43","date_gmt":"2023-11-04T01:06:43","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=6061"},"modified":"2023-11-06T11:37:55","modified_gmt":"2023-11-06T06:07:55","slug":"karnataka-sslc-science-model-question-paper-3","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/karnataka-sslc-science-model-question-paper-3\/","title":{"rendered":"Karnataka SSLC Science Model Question Paper 3 With Answers"},"content":{"rendered":"

Students can Download Karnataka SSLC Science Model Question Paper 3 with Answers, Karnataka SSLC Science Model Question Papers with Answers<\/a> helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.<\/span><\/p>\n

Karnataka State Syllabus SSLC Science Model Question Paper 3 With Answers<\/h2>\n

Time: 3 Hours
\nMax Marks: 80<\/p>\n

I. Four alternatives are provided for each of the following, questions or incomplete statements. Choose the most appropriate alternative and write with its alphabet. ( 8 \u00d7 1 = 8 )<\/span><\/p>\n

Question 1.
\nIn the following sketch of stomatal apparatus the parts I, II and III where labeled differently by four students, the correct labeling out of the following is
\n\"Karnataka
\nA) I Guard cell, II stomatal pore, III chloroplast.
\nB) I Stomatal pore, II guard cell, III chloroplast
\nC) I chloroplast, II stomatal pore, III Guard cells
\nD) I Guard cell, II chloroplast, III stomatal pores.
\nAnswer:
\nA) I Guard cell, II stomatal pore, III chloroplast.<\/p>\n

Question 2.
\nThe sulphide ore among the following is
\nA) Haematite
\nB) Bauxite
\nC) Argentite
\nD) Zinc blende.
\nAnswer:
\nD) Zinc blende.<\/p>\n

Question 3.
\nWhich of the following it most suitable for the core of electromagnets
\nA) Air
\nB) Soft iron
\nC) Steel
\nD) Cu-Ni alloy
\nAnswer:
\nB) Soft iron<\/p>\n

\"Karnataka<\/p>\n

Question 4.
\nDecomposers of an ecosystem consists of
\nA) Organisms which make organic compound out of inorganic compounds
\nB) Organisms which use radiant energy to produce biomass
\nC) Certain blue green algae and algae
\nD) Certain fungi and bacteria.
\nAnswer:
\nD) Certain fungi and bacteria.<\/p>\n

Question 5.
\nPhototropism is caused to differential distribution of
\nA) Abscisic asid
\nB) Gibberellin
\nC) Cytokinin
\nD) Auxin
\nAnswer:
\nD) Auxin<\/p>\n

Question 6.
\nMost of the sources of energy we use represent stored solar energy which of the following is not ultimately derived from the sun\u2019s energy
\nA) Geothermal energy
\nB) Wind energy
\nC) Nuclear energy
\nD) Bio mass
\nAnswer:
\nC) Nuclear energy<\/p>\n

Question 7.
\nWhich of the following represent N2<\/sub> molecules
\n\"Karnataka
\nAnswer:
\n\"Karnataka<\/p>\n

\"Karnataka<\/p>\n

Question 8.
\nGalvanisation of iron means coating iron with
\nA) Zinc
\nB) Nickle
\nC) Chromium
\nD) Tin
\nAnswer:
\nA) Zinc<\/p>\n

II. Answer the following questions ( 8 \u00d7 1 = 8 )<\/span><\/p>\n

Question 9.
\nWhat is the principle of a electric motor ?
\nAnswer:
\nAn electric motor is based on the principle that when a current is passed through conductor placed a uniformed magnetic field it experiences a force which maker the conductor rotate.<\/p>\n

Question 10.
\nWhy does an aqueous solution of an acid conduct electricity ?
\nAnswer:
\nThe presence of hydrogen (H+<\/sup>) or hydronium (H3<\/sub>O+<\/sup>) ions in aqueous solution of an acid are responsible for conducting electricity.<\/p>\n

Question 11.
\nWrite a mathematical expression for Joule\u2019s law of heating. Name on device which work on this principle.
\nAnswer:
\nH = I2<\/sup>Rt
\nAn electric heater works on Joule\u2019s law of heating<\/p>\n

\"Karnataka<\/p>\n

Question 12.
\nHow is the increase in demand for energy affecting our environment adversely ?
\nAnswer:
\nThe increase in demand for energy affects our environment adversely due to the increase pollutants like 2<\/sub>, CO, SO4<\/sub> etc. are released into the atmosphere which lead to greenhouse affect.<\/p>\n

Question 13.
\nIf a person is working on a treadmill in a gymnasium will it effect his rate of breathing ? How ?
\nAnswer:
\nYes, it will affect his rate of breathing. It will become fast to supply more oxygen to meet the increased demand of energy.<\/p>\n

Question 14.
\nWhen is the force experienced by current carrying conductor placed in a magnetic field largest ?
\nAnswer:
\nThe force experienced by current carrying conductor placed in a magnetic field is largest when the current carrying conductor is placed in a direction perpendicular to that of magnetic field.<\/p>\n

Question 15.
\nWhat change will you observe it you test soap with Litmus paper (red and blue)
\nAnswer:
\nSoap is basic in nature and hence turns red litmus blue.<\/p>\n

\"Karnataka<\/p>\n

Question 16.
\nDefine Rancidity ?
\nThe oxidation of oils or fats in food resulting in a bad smell and bad taste is called rancidity.<\/p>\n

III. Answer the following questions. ( 8 \u00d7 2 = 16 )<\/span><\/p>\n

Question 17.
\nDefine the term functional group identify the functional group present in the following.
\n\"Karnataka
\nIt is a atom or group of atom or reactive part of compound which largely determine the chemical properties of compound
\ni) Methanol: Alcohol (-OH)
\nii) Ethanoic acid : caboxylic acid (-COOH)<\/p>\n

OR<\/p>\n

What are saturated and unsaturated hydrocarbon? Write the structure of the simplest hydrocarbon ?
\nAnswer:<\/p>\n