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Colour of the flames when ferrous sulphate crystal is heated

nitish 13th Mar, 2026

Hello,

When ferrous sulphate crystals are heated, they first lose water of crystallization and the crystals change colour from green to white. On further heating, the compound decomposes and forms brown solid (ferric oxide) along with gases like sulphur dioxide and sulphur trioxide. During this process, the substance does not

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I need a 10th board exam pepar and solution pdf

shivani 1st Mar, 2026

Dear Aayush,

You may download Class 10 CBSE question papers and their corresponding solutions for various subjects, including English, Mathematics, Science, and Social Science, for previous years from the link provided below:

CBSE Class 10 Previous Year Question Papers PDF: Download Last Year Sample Papers

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preparatory question paper 2024 25 10thscoence

Sanskriti Srivastava 2nd Mar, 2026

Hi Gayatri!

You can download the CBSE Class 10 Science sample/preparatory question paper for 2024–25 with solutions from here:

https://school.careers360.com/download/ebooks/cbse-class-10-science-sample-paper-solution-2024-25

I hope it helps. Thank you!

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Class 9all subject question paper

Silki Joshi 2nd Mar, 2026

Hello Sameer

Kindly provide the board name for which you are looking for.

Preparatory 1 sciences answers

Himanshu Shekhar 26th Feb, 2026

Karnataka SSLC Preparatory Exam Answer Key 2026 (Exam 1, 2 & 3)- Download PDF

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