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By Pravin Keshari

About blog


        The main purpose of making this blog is to provide free learning materials to the Nepalese students. All the study materials posted here are free of cost. The notes and study materials are as per the syllabus of different level of different boards of Nepal.

All the stuffs posted here are for non-profit purpose. 

Thanks !!!
Pravin Keshari
    B.Sc. Chemistry (T.U.)
    +977-98154-97631
    pravin.keshari.31@gmail.com




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Blood Circulation in Human Body || Solved Q/A for practice for S.E.E. - Exam || Part-3

By Pravin Keshari
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Blood Circulation in Human Body Part-3:  Very short questions and answers for S.E.E. students Questions and answers for practice for S.E.E. examination 1) Write down the use of sphygmomanometer. Answer: Sphygmomamnometer is used to measure blood pressure. 2) What is uric acid? Answer: The acid produced in the body as a by-product due to decomposition of purine present in the cells and food is called uric acid. 3) Where are red blood cells formed and destroyed? Answer: Red blood cells or erythrocytes are formed in bone marrow and destroyed in the liver. 4) What is diastolic blood pressure? Write down the diastolic pressure of healthy young person. Answer: When ventricles relax the pressure of blood inside the arteries is comparatively less and this pressure is called diastolic pressure or diastole. It is about 80 mm of Hg in a healthy young person. 5) What is systolic pressure? Write down the systolic pressure of a healthy young person. Answer: When ventricles contract, the pre...
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Basics of Chemistry || Part-03 ||

By Pravin Keshari
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Basics of Chemistry Part-03   (Shell and Sub-shell Electronic configuration ) In the previous two parts of this series, we have learnt about details of first 20 elements, calculated their atomic weight and drawn their atomic structures.  Not seen Part-1 and Part-2 yet?? Click here for Basics of Chemistry || Part-01 || Click here for Basics of Chemistry || Part-02 || In this part we will be discussing about shell(orbit) and sub-shell(orbital) electronic configuration of first 20 elements. We will learn how to write these electronic configurations and what information can be obtained from them. So, let us start... As we have seen in the atomic structure, the first shell (orbit) can accommodate maximum 2 electrons, we will first try to put 2 electrons in 1st orbit i.e., K-Shell (orbit). But, Hydrogen contains only 1 electron as a whole, so it contains only 1 electron in the 1st shell (Orbit). Then, the 2nd orbit i.e., L-Shell can accommodate maximum 8 electrons. So, we will ...
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CTEVT Entrance questions || Part -7

By Pravin Keshari
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CTEVT Entrance Questions Part-07  "Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you'll be successful."  - Albert Schweitzer      Loading… This entrance questions is for CTEVT entrance exam of Staff Nurse, Medicine(HA), Diploma in Pharmacy(D. Pharm), Medical Laboratory(CMLT), Opthalmic Science(O.A.), etc. The questions in this test are taken from Diploma/ Certificate level Entrance exam 2074.         More questions will be given in another blog post.     ____________________________________________________________________________________ For any kind of query in any chapter of S.E.E. science, mail your question/s on  pravin.keshari.31@gmail.com Follow me on social media:                Facebook: Pravin Keshari                  Twitter: Pravin keshari     ...
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Basics of Chemistry || Part-02 ||

By Pravin Keshari
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Basics of Chemistry Part-02   ( Atomic structure of f irst 20 elements) In the previous part we learnt about details of first 20 element and we calculated atomic weight of them. That was the first and most important step in studying chemistry. Without understanding about elements, their symbol and valancy, it is impossible to understand chemistry. So, for that, we have to first draw and understand the atomic structure of all first 20 elements. Click here for  Basics of Chemistry || Part-01 || So, let us start... Atomic Structure of first 20 elements Atomic Structure of Hydrogen (H) Atomic Structure of Helium (He) Atomic Structure of Lithium (Li) Atomic Structure of Beryllium (Be) Atomic Structure of Boron (B) Atomic Structure of Carbon (C) Atomic Structure of Nitrogen (N) Atomic Structure of Oxygen (O) Atomic Structure of Fluorine (F) Atomic Structure of Neon (Ne) Atomic Structure of Sodium (Na) Atomic Structure of Magnesium (Mg) Atomic Structure of Aluminum (Al) Atomic Struct...
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Force || Solved Q/A for S.E.E. - Exam || Part-1

By Pravin Keshari
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FORCE Part-1  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1)What is gravitation or gravitational force? Answer: The force with which any two objects attract each other is called gravitation or gravitational force. 2) State the factors that affect the gravitational force. Answer: The factors that affect the gravitational force are:     (i) Mass of two heavenly bodies.     (ii) Distance between their centers . 3) What is heliocentric theory? Answer: Heliocentric theory states that the sun lies at the center  of the universe and all the planets and satellites revolve around the sun. 4) What is geocentric theory? Answer: Geocentric theory states that the earth remains at the center of the universe and the sun, moon and other planets revolve around the earth. 5) State Newton's universal law of gravitation. Answer: Newton's universal law of gravitation states that, "The force of attraction between ...
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Set of 50 MCQ's for CTEVT & Bridge Course || Part-06 ||

By Pravin Keshari
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Set of 50 MCQ's for CTEVT & Bridge Course Part-06 "It always seems impossible until it's done" In this section you will find 50+ questions for practice. These questions are helpful for  CTEVT  as well as  Bridge course  entrance preparation of Science stream.  Everyday a blog post will be posted with 50+ questions upto 10 days. These questions are available free of cost to all students.  The 50 questions are classified as:     1) English - 10 questions         2) Chemistry - 10 questions     3) Physics - 10 questions     4) Biology - 10 questions     5) Maths - 10 questions Solve the MCQ's by yourself and check your aptitude. If you get stuck at any question, comment the question number(with your full name and phone number) below in the comment section. We will try to reply each and every comments. 50 MCQ for CTEVT & Bridge Course English 1) She is ...... Hindu girl.     a) a...
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Set of 50 MCQ's for CTEVT & Bridge Course || Part-05 ||

By Pravin Keshari
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  Set of 50 MCQ's for CTEVT & Bridge Course Part-05 "Work Hard, Dream Big & Never Give up" In this section you will find 50+ questions for practice. These questions are helpful for  CTEVT  as well as  Bridge course  entrance preparation of Science stream.  Everyday a blog post will be posted with 50+ questions upto 10 days. These questions are available free of cost to all students.  The 50 questions are classified as:     1) English - 10 questions         2) Chemistry - 10 questions     3) Physics - 10 questions     4) Biology - 10 questions     5) Maths - 10 questions Solve the MCQ's by yourself and check your aptitude. If you get stuck at any question, comment the question number(with your full name and phone number) below in the comment section. We will try to reply each and every comments. 50 MCQ for CTEVT & Bridge Course English 1) I have....... ewe.     a) a ...
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CTEVT Entrance questions || Part -2

By Pravin Keshari
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CTEVT Entrance Questions Part-02        Loading… This entrance questions is for CTEVT entrance exam of Staff Nurse, Medicine(HA), Diploma in Pharmacy(D. Pharm), Medical Laboratory(CMLT), Opthalmic Science(O.A.), etc. The questions in this test are taken from Diploma/ Certificate level Entrance exam 2074. You will get online certificate with your name and grade in your email after the end of this test series of 10 days.         More questions will be given in another blog post.     ____________________________________________________________________________________ For any kind of query in any chapter of S.E.E. science, mail your question/s on  pravin.keshari.31@gmail.com Follow me on social media:                Facebook: Pravin Keshari                  Twitter: Pravin keshari            ...
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Chemical Reaction || Solved Q/A for S.E.E. - Exam || Part-2

By Pravin Keshari
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CHEMICAL REACTION Part-2  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1) Write the types of given chemical equation.               (i) C + O₂ → C O₂               (ii) 2KClO₃  → 2KCl + O ₂ Answer: (i) Combination reaction                    (ii) Decomposition reaction 2) Which type of chemical equation is given below?          Fe + CuSO₄ → FeSO₄ + Cu Answer: The given chemical equation is single displacement reaction. 3) Identify the type of chemical reaction given below.          Ca + H ₂ SO₄  → Ca SO₄ + H ₂ Answer: The given chemical reaction is single displacement reaction. 4) What is a combination or synthesis reaction? Answer: The chemical reaction in which two or more reactants combine to form a new compound is cal...
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प्राविधिक प्रहरी नायव निरीक्षक - प्रथम पत्र (नेपाल प्रहरी) || Forensics Paper 2078-09-29

By Pravin Keshari
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प्राविधिक प्रहरी नायव निरीक्षक - प्रथम पत्र (नेपाल प्रहरी) नेपाल पुलिस अन्तर्गत प्राविधिक प्रहरी को विधि विज्ञान (प्राविधिक प्रहरी नायव निरीक्षक) का लागी प्रथम पत्रमा सोधिएका प्रश्नहरु यस प्रकार छन्।  यो प्रश्नहौ लोकसेवा आयोग द्वारा सोधिएको संयुक्त परिक्षा अनतर्गत विधि विज्ञानका लागि सोधिएको हो।  मिति २०७८ - ०९ -२९ गते को दिन प्रथम पत्र र ३० गते द्वितीय पत्र (प्रहरी सेवा सम्बन्धि) परिक्षा संचालन भएको हो।  Location of Central Police Forensic Science Laboratory: Click here समय ३ घण्टा  पत्र : प्रथम                                                                                                               पुर्णाङ्क : १०० Subject: Forensic Scien...
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