Added instructions for practical 1 and 2 from Vedang's repo.
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# Practical-1: MetaMask Installation and Ether Spending Study
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## Step 1: Install MetaMask
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### For Desktop (Browser)
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1. Open your preferred browser (Chrome, Firefox, Edge, or Brave).
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2. Go to the official MetaMask website: [https://metamask.io](https://metamask.io)
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3. Click **"Download"** and select your browser.
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4. Add the extension to your browser.
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5. Open MetaMask, and follow the setup:
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- **Create a new wallet** or **import an existing one**.
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- Set a **strong password**.
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- **Backup your secret recovery phrase** securely.
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### For Mobile
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1. Go to your App Store (iOS) or Google Play Store (Android).
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2. Search for **MetaMask**.
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3. Download and install the app.
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4. Follow similar setup steps (create wallet, backup phrase).
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## Step 2: Connect MetaMask to a Network
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- By default, MetaMask uses the **Ethereum Mainnet**.
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- To use test networks for learning, click the network dropdown and select a testnet like **Goerli Test Network**.
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- Obtain free test Ether from a Goerli faucet: [https://goerlifaucet.com/](https://goerlifaucet.com/).
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## Step 3: Understanding Ether Spending per Transaction
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### Key Concepts
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1. **Gas Limit:** Maximum units of gas you are willing to spend.
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2. **Gas Price:** Price per gas unit in **Gwei** (1 ETH = 1,000,000,000 Gwei).
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3. **Transaction Fee = Gas Limit × Gas Price**
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## Step 4: Make a Test Transaction
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1. Ensure your wallet has ETH (test ETH on testnets).
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2. Click **Send** in MetaMask.
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3. Enter the recipient address and amount.
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4. Adjust **Gas Fee** if desired.
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5. Confirm the transaction.
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## Step 5: Observe Spending
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- After sending, MetaMask displays the **Transaction Fee** in ETH.
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- To see detailed info, check **Etherscan**:
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1. Copy the transaction hash from MetaMask.
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2. Go to [https://etherscan.io](https://etherscan.io) or testnet explorer like [https://goerli.etherscan.io](https://goerli.etherscan.io).
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3. Paste the hash to see gas used and ETH spent.
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## Step 6: Experiment
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- Send multiple transactions with different **gas prices**.
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- Observe how fees change based on **network congestion**.
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- Try interacting with **smart contracts** to see higher gas usage.
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## Tips
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- Always use a testnet first to avoid losing real ETH.
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- MetaMask provides detailed transaction history and gas usage.
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# Practical-2: How to Create Your Own Wallet Using MetaMask for Crypto Transactions
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MetaMask is a popular cryptocurrency wallet that allows you to manage Ethereum-based assets and interact with decentralized applications (dApps). Follow the steps below to create your own wallet.
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---
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## Step 1: Install MetaMask
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1. Go to the official MetaMask website: [https://metamask.io](https://metamask.io)
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2. Click on **"Download"**.
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3. Choose your platform:
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- **Browser Extension**: Chrome, Firefox, Brave, Edge
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- **Mobile App**: iOS or Android
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4. Install the extension or app.
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---
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## Step 2: Create a New Wallet
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1. Open MetaMask.
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2. Click on **"Get Started"**.
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3. Select **"Create a Wallet"**.
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4. Set a **strong password** for local access. This password is used to unlock your wallet on your device.
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5. Click **"Create"**.
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---
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## Step 3: Backup Your Secret Recovery Phrase
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1. MetaMask will display a **12-word Secret Recovery Phrase**. This is extremely important.
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2. Write it down on paper and **store it securely**.
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⚠️ **Never share your recovery phrase with anyone.**
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3. Confirm the recovery phrase by selecting the words in order.
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4. Click **"Confirm"**.
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---
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## Step 4: Access Your Wallet
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1. Once confirmed, your wallet is ready.
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2. You can view your wallet address by clicking on **Account 1** at the top.
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3. This address can be shared to **receive crypto**.
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---
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## Step 5: Add Funds to Your Wallet
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1. Buy crypto from an exchange (like Coinbase, Binance, or WazirX).
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2. Transfer it to your MetaMask wallet address.
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3. Wait for the transaction to be confirmed.
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---
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## Step 6: Use Your Wallet for Transactions
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- **Send crypto:** Click **Send**, enter the recipient’s address and amount.
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- **Receive crypto:** Share your wallet address.
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- **Interact with dApps:** Connect MetaMask to decentralized applications by clicking **Connect Wallet** on supported websites.
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---
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## Step 7: Security Tips
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- **Never share your password or Secret Recovery Phrase.**
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- Enable **two-factor authentication (2FA)** on exchange accounts.
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- Keep MetaMask updated to the latest version.
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- Consider using **hardware wallets** for storing large amounts of crypto.
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---
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## References
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- [MetaMask Official Website](https://metamask.io)
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- [MetaMask User Guide](https://metamask.zendesk.com/hc/en-us)
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