The Andhra Pradesh government has revised the number of districts in the state, increasing it from the existing 13 to 26. Issuing a gazette notification on Tuesday, the state government gave a nod.

Answer NCERT Solutions CBSE CBSE Study Material Textbook Solutions CBSE Notes An object placed at 2F of a convex lens will produce an image (A). At 2F (B). Real and inverted (C). Enlarge (D). Virtual Answer Verified 309.3k + views

The Federal Motor Carrier Safety Administration (FMCSA) developed Our Roads, Our Safety Ⓡ, a national safety campaign to encourage road users to share the road safely with large trucks and buses. Watch the video below to see the highlights of what the campaign offers and visit the Outreach Toolkit to download these materials for your own.

A wondrous event occurs.. nuclear fusion begins and the ball of gas and dust starts to glow. A new star has begun its life in our Universe. So what is this magical thing called "nuclear fusion" and why does it start happening inside the ball of gas and dust? It happens like this...

Click here👆to get an answer to your question ️ 5. We are given a convex lens of focal length 20 cm. Draw ray diagrams to show the nature, size and position of the image formed when the object is kept at a distance of (a) 55 cm (b) 35 cm (c) 15 cm from the lens. (Note: For drawing ray diagrams, use an appropriate scale.)

Question: As a reaction proceeds, old bonds break and new bonds form. This transition state contains only partial bonds and lasts for one bond vibration cycle (~10-15 seconds). Because of this, it is not possible to chemically isolate a transition state. The transition state has the highest energy of all structures in the reaction.

Breaking a bond is endothermic. Energy is taken in to break a chemicalbond. E.g. H−H(g)→H(g)+H(g), whereby ΔH=+436 kJ mol−1436 kJ of energy is required to break one mole of covalent bonds in thehydrogen molecules. Forming a bond is exothermic. Energy is released when a chemical bondis formed.

4 What type of azeotrope is formed by mixing chloroform and acetone? 5 What type of azeotropic mixture will be formed by a solution of acetone and chloroform? 6 What type of deviation does a solution of ethanol and acetone exhibits and also mention the type of azeotrope formed by this solution?

DNPH is a reagent in instructional laboratories on qualitative organic analysis. Brady's reagent or Borche's reagent, is prepared by dissolving DNPH in a solution containing methanol and some concentrated sulfuric acid. This solution is used to detect ketones and aldehydes.

A substance X which is used as an antacid reacts with dilute hydrochloric acid to produce a gas Y which is used in one type of fire-extinguisher. Name the substance X and gas Y. Write a balanced equation for the chemical reaction which takes place. Medium Solution Verified by Toppr Substance X is Sodium Hydrogen Carbonate and Y is Carbon Dioxide.

Answer: (d) (a) Boiling of water to give water vapour – Change in state – Physical change (b) Melting of ice to give water - Change in state – Physical change (c) Dissolution of salt in water - When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules.

Tropospheric ozone is formed by the interaction of sunlight, particularly ultraviolet light, with hydrocarbons and nitrogen oxides, which are emitted by automobile tailpipes and smokestacks. In urban areas, high ozone levels usually occur during warm summer months.