{"id":6059,"date":"2019-08-29T06:46:39","date_gmt":"2019-08-29T06:46:39","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=6059"},"modified":"2021-07-02T15:45:57","modified_gmt":"2021-07-02T10:15:57","slug":"karnataka-sslc-science-model-question-paper-1","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/karnataka-sslc-science-model-question-paper-1\/","title":{"rendered":"Karnataka SSLC Science Model Question Paper 1 With Answers"},"content":{"rendered":"

Students can Download Karnataka SSLC Science Model Question Paper 1 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 1 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.
\nWhich of the following groups contain only biodegradable items
\nA) Grass, flowers, and leather
\nB) Grass, wood and plastic
\nC) Fruit, peels, cake and lime juice
\nD) Cake, wood and glass
\nAnswer:
\nC) Fruit, peels, cake and lime juice<\/p>\n

Question 2.
\nThe embryo gets nutrition from the mother\u2019s blood with the help of a special tissue called
\nA) Zygote
\nB) Utreus only
\nC) Placenta
\nD) None of these
\nAnswer:
\nC) Placenta<\/p>\n

Question 3.
\nOne of the main aim of conservation is to try and preserve the ______ we have inherited.
\nA) Ecosystem
\nB) Biodiversity
\nC) Environment
\nD) Universal
\nAnswer:
\nB) Biodiversity<\/p>\n

\"Karnataka<\/p>\n

Question 4.
\nWhich of the following terms does not represent electrical power in a circuit?
\nA) I2<\/sup>R
\nB) IR2<\/sup>
\nC) VI
\nD) V2<\/sup>\/R
\nAnswer:
\nB) IR2<\/sup><\/p>\n

Question 5.
\nBy which reaction metal is obtained from metal oxide
\nA) Liquification
\nB) Reduction
\nC) Calcination
\nD) Roasting
\nAnswer:
\nB) Reduction<\/p>\n

Question 6.
\nConversion of electrical signal to chemical signal occurs at:
\nA) Dendrite of a neuron
\nB) Axon of a neuron
\nC) Nerve ending of a neuron
\nD) Cell body of a neuron
\nAnswer:
\nC) Nerve ending of a neuron<\/p>\n

Question 7.
\nWhich of the following reaction will never occur
\nA) Cu + H2<\/sub>SO4<\/sub>\u00a0\u2192 CuSO4<\/sub>\u00a0+ H2<\/sub>
\nB) Mg + H2<\/sub>SO4<\/sub>\u00a0\u2192 MgSO4<\/sub>\u00a0+ H2<\/sub>
\nC) 2Al + 6HCl \u2192 2AlCl3<\/sub>\u00a0+ 3H2<\/sub>
\nD) Fe + 2HCl \u2192 FeCl + H2<\/sub>
\nAnswer:
\nA) Cu + H2<\/sub>SO4<\/sub>\u00a0\u2192 CuSO4<\/sub>\u00a0+ H2<\/sub>
\n<\/sub><\/p>\n

\"Karnataka<\/p>\n

Question 8.
\nSodium carbonate is a basic salt because it is a salt of
\nA) Strong acid and strong base
\nB) Weak acid and weak base
\nC) Strong acid and weak base
\nD) Weak acid and strong base
\nAnswer:
\nD) Weak acid and strong base<\/p>\n

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

Question 9.
\nWhat are autosomes and sex chromosomes?
\nAnswer:
\nHuman cell contain 23 pairs of chromosomes out of 23 pairs, 22 pairs are called autosomes, rest of 1 pair, which determine the sex of child is called sex chromosomes.<\/p>\n

Question 10.
\nWhat does the high level of total coliform count in river Ganga indicate?
\nAnswer:
\nThe high level of total coliform count in river Ganga indicates that the water is contaminated by disease causing microorganisms (mainly sewage).<\/p>\n

Question 11.
\nWhy are we not able to see the things clearly when we come out of a dark room?
\nAnswer:
\nWhen we are in dark, pupil size is bigger, as we come out of dark room, its size needs to become smaller. For that time interval the person is unable to see.<\/p>\n

\"Karnataka<\/p>\n

Question 12.
\nWhat is an electric current? Write its SI unit.
\nAnswer:
\nThe rate of flow of charges through a conductor is called an electric current. Its SI unit is ampere (A).<\/p>\n

Question 13.
\nIn a bakery, baking powder was not added while preparing cake. The cake obtained was hard and small in size. What is the reason for this.
\nAnswer:
\nBaking powder is used for baking cakes. It contains sodium hydrogen carbonate, which breaks down when heated to form CO2<\/sub>\u00a0gas. The CO2<\/sub>\u00a0help to make the cakes light and fluffy.<\/p>\n

Question 14.
\nWhy do we consider tungsten as suitable material for making the filament of a bulb?
\nThe filament of an electric bulb is usually made of tungsten because of its higher resistivity value (5.56 \u00d7 10 \u2126 m) and its high melting point (3422\u00b0C).<\/p>\n

Question 15.
\nWhere do plants get each of the raw materials required for photosynthesis?
\nAnswer:<\/p>\n