Day 25: MH SSC Class 10 Science and Technology I
5 questions. Try each one first, then open its answer.
Question 1
Lenses. Asked once: Mar 2016 (same type asked 4 times)
Q2(3)Calculate the focal length of a corrective lens having power .Question 2
Refraction of Light. Asked once: Mar 2024 (same type asked 4 times)
Q4(i)Observe the given diagram (a beam of sunlight passing through a glass prism and splitting into the band of colours ROYGBIV) and answer the questions: (a) Name the process shown in the figure. (b) Name the colour that deviates the most. (c) Name the colour that deviates the least. (d) Name any one phenomenon in the nature which is based on the above process. (e) Define 'spectrum'.Question 3
Carbon Compounds. Asked once: Mar 2024 (same type asked 4 times)
Q1(B)(iv)Identify the hydrocarbon from the given electron-dot structure: ``` H H .. .. H : C : C : H .. .. H H ```Question 4
Effects of Electric Current. Asked once: Mar 2025 (same type asked 4 times)
Q3(iv)Name the following diagrams and explain the concept behind them:Question 5
Carbon Compounds. Asked once: Jul 2024 (same type asked 4 times)
Q4(ii)Read the following paragraph and answer the questions given below: Carbon compounds contain many elements. The element hydrogen is present to a smaller or larger extent in majority of carbon compounds. The compounds which contain carbon and hydrogen as the only two elements are called hydrocarbons. Hydrocarbons are the simplest and the fundamental organic compounds. The smallest hydrocarbon is methane (), formed by combination of one carbon atom and four hydrogen atoms. We have already seen the structure of methane. Ethane is one more hydrocarbon. Its molecular formula is . The carbon compounds having a double bond or triple bond between two carbon atoms are called unsaturated compounds. Ethene and ethyne are unsaturated hydrocarbons. The unsaturated hydrocarbons containing a carbon-carbon double bond are called 'Alkenes'. The unsaturated hydrocarbons whose structures contain a carbon-carbon triple bond are called 'Alkynes'. Generally the unsaturated compounds are more reactive than the saturated compounds. (a) What is meant by hydrocarbon? (b) Name the smallest hydrocarbon. (c) Define unsaturated compound. (d) Differentiate between Alkene and Alkyne.