Doubtly
@Doubtly · Joined Feb 2021
- Answers
- 3,792
- Questions
- 4,033
- Upvotes received
- 427
- In which reaction does nitrogen exhibit variation of oxidation state from -3 to +5 ? In the following series of reactions, the oxidation number of nitrogen changes from –3 in NH3 to +5 in HNO3. −3 +2 ceundersetAmmonia4NH3_((g... 1
- In which chemical reaction does carbon exibit variation of oxidation state from -4 to +4 ? Write balanced chemical reaction. In combustion of methane, carbon exhibits variation from -4 to +4. The reaction is as follows: CH₄ + 2O₂ → CO₂ + 2H₂O In CH₄, the oxidation... 1
- Write the formula for the following compounds : A. Mercury(II) chloride B. Thallium(I) sulphate C. Tin(IV) oxide D. Chromium(III) oxide A. HgCl₂ B. Tl₂SO₄ C. SnO₂ D. Cr₂O₃ 2
- Birth, evolution and death of stars etc. are studied in branch of physics known as ............... (a) Thermodynamics (b) Quantum physics (c) Astrophysics Astrophysics deals with physical nature of stars and celestial bodies Thermodynamics deals with relation between heat and o... 1
- The range of time scale is about ............... (a) 10–10 sec to1026 sec (b) 10–22 sec to1018 sec (c) 10–15 sec to1015 sec (b) 10^(–22) sec to10¹⁸sec The range of time scale is 10^(–22) sec to 10¹⁸ sec. 1
- The scope for ratio of length is in order to ............... (a) 10–40 (b) 1040 (c) 1020 (d) 1030 (b) 10⁴⁰ The scope for ratio of length is in order to 10⁴⁰. 1
- What is the approximate value of the Radius of a nucleus ? (a) 10–14m (b) 10–31m (a) 10^(–14m) Approximate values of radius of nucleus is 10^(–14) m. 1
- Mechanics and Newton's motion laws are ............... laws dependent. (a) liner momentum (b) Energy conservation (c) Gravitational Mechanics and Newton’s motion laws are gravitational law dependent. 1
- 'Physics' comes from a ............... word meaning nature (A) Hindi (B) German (C) Greek (D) Sanskrit (C) Greek Physics comes from a Greek word meaning nature and that word is ‘fusis’ 1
- Physics is one of the basic disciplines in the category of ….. sciences. (A) Astro (B) Natural (C) Space (D) Genetic (B) Natural Physics is one the basic disciplines in the category of natural sciences. 1
- We are thinking to create platform to help you guys by solving doubts via zoom live comment below this answer 1
- Submit question papers and help others also win exciting gift cards of flipkart Upload Now papers 1
- mht cet counselling 2021 date The State Common Entrance Test Cell, Maharashtra, has started the registration process of MHT CET counselling 2021. Candidates can register... 1
- Download Science Paper 1 July 2020 Std 10th SSC English Medium Maharashtra State Board Question Paper Download NOw 1
- 10th English Previous Year Question Paper's Maharshtra board Download Now 1
- All the World’s a Stage All the world’s a stage, And all the men and women merely players; They have their exits and their entrances, And one man in his time plays... 1
- What type of changes occurs in a home having chronically ill old person? How will you help to maintain good atmosphere? Having chronically ill old patients in a family affects the physical and mental state of others members of the family as well. It is not eas... 1
- Activities under the jurisdiction of cyber crime laws. give three example Activities under the jurisdiction of cyber crime laws- hacking of information, sale or misuse of written literature and spreading vulgar pic... 1