Doubtnut: NCERT, IIT JEE, NEET

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Doubtnut is No.1 Study App to find Instant Video Solutions to all your Math doubts, Physics doubts, Chemistry doubts, Biology doubts.. Get PDF and video solution of IIT-JEE Mains & Advanced previous year papers, NEET previous year papers, NCERT books for classes 6 to 12, CBSE, RD Sharma, RS Aggarwal, Cengage books for boards and competitive exams.

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Class 9⭐️
-Class 9 Maths Solutions
-Class 9 Science Solutions
-Class 9 RD Sharma. Solutions
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Class 10⭐️
-Class 10 Maths Solutions
-Class 10 Science Solutions
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-Class 10 Lakhmir Singh Solutions
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Class 11⭐️
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-Class 11 Physics Solutions
-Class 11 Chemistry Solutions
-Class 11 Biology Solutions
-Class 11 Previous year papers
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Class 12⭐️
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BSEB Books Solution⭐️
-Class 10 BSEB Maths Solutions
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-Class 11 BSEB Maths Solutions
-Class 11 BSEB Physics Solutions
-Class 12 BSEB Maths Solutions
-Class 12 BSEB Chemistry Solutions

UP Board Books Solution⭐️
-Class 10 UP Board Maths Solutions
-Class 10 UP Board Science Solutions
-Class 11 UP Board Maths Solutions
-Class 11 UP Board Physics Solutions
-Class 12 UP Board Maths Solutions
-Class 12 UP Board Chemistry Solutions

Competitive exams – JEE Mains and Advanced, Government exams – SSC CGL Railways, Banks
• Free IIT JEE Mains previous year question papers with solutions, solved papers with explanations in Hindi – JEE Mains 2013, JEE Mains 2014, JEE Mains 2015, JEE Mains 2016, JEE Mains 2017, JEE Mains 2018, JEE Mains 2019
• Free IIT JEE Advanced previous year question papers with solutions, solved papers with explanations in Hindi
• Topic wise objective questions for IIT-JEE, Important formulae & video shortcut tricks
• Top tricks in Hindi to crack IIT-JEE Mains
• Free Question Bank for IIT-JEE Mains
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• JEE mains and advanced answer key
• Free video and pdf solutions for following books – RD Sharma, RS Aggarwal, Cengage, Resonence, Narayana, Bansal, FITJEE, VMC.
• Previous years solved papers for AIEEE 2002-2010, AIEEE 2011, AIEEE 2012
• JEE quiz tests, revision notes and videos in Hindi
• IIT foundation books for class 8, class 9, class 10, class 11, class 12 in Hindi

Highlights: Free IIT JEE exam preparation, IIT JEE Main preparation, IIT JEE Advanced preparation, IIT JEE 2019, IIT JEE Guide 2019, solutions IIT previous year papers, Mock Papers. Online Maths PDF & video solutions, Maths NCERT solutions, Maths CBSE solutions for classes 6-12, previous year papers solutions, mock papers, practice papers, tips and tricks, quizzes all for free.

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This app requires access to the following content:

access approximate location (network-based)
Allows the app to get your approximate location. This location is derived by location services using network location sources such as cell towers and Wi-Fi. These location services must be turned on and available to your device for the app to use them. Apps may use this to determine approximately where you are.

view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

have full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

take pictures and videos
Allows the app to take pictures and videos with the camera. This permission allows the app to use the camera at any time without your confirmation.

write/delete internal storage
Allows the app to write to the internal storage.

Read Internal Storage
Allows the app to read the contents of your internal storage.

receive data from Internet
Allows apps to accept cloud to device messages sent by the app’s service. Using this service will incur data usage. Malicious apps could cause excess data usage.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

find accounts on the device
Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.

record audio
Allows the app to record audio with the microphone. This permission allows the app to record audio at any time without your confirmation.

change your audio settings
Allows the app to modify global audio settings such as volume and which speaker is used for output.

read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.

read call log
Allows the app to read your phone’s call log, including data about incoming and outgoing calls. This permission allows apps to save your call log data, and malicious apps may share call log data without your knowledge.

call phone
Allows the app to call phone numbers without your intervention. This may result in unexpected charges or calls. Note that this doesn’t allow the app to call emergency numbers. Malicious apps may cost you money by making calls without your confirmation.

view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.

control vibration
Allows the app to control the vibrator.

run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.

Play Install Referrer API
Allows the app to retrieve its install referrer information.